Teen Slang Red Flags (2025): 20 Terms Parents Should Know

By Slang Compass Editors ~2 min read

Not every spicy phrase is a crisis — but some slang hints at risky behavior, pressure, or spots where a quick check-in helps. Here are the red-flag terms parents ask about most, what they usually mean, and how to respond without starting a fight.

Kids mix jokes, memes, and shock value with everyday talk, so a word can look alarming while the vibe is playful — or the reverse. This guide separates noise from signals: plain-English meanings, how it shows up in chats and videos, and quick “what to ask next” prompts. Each term below links to a full definition page with examples and safety notes so you can go deeper when you need to.

Use this like a dashboard, not a diagnosis. Notice the three context checks — tone (how it’s said), place (where it appears), and pattern (is it new or constant). If something pings your radar, try a one-liner that keeps doors open: “I’ve heard that word a lot — how are your friends using it?” Calm curiosity beats confrontation, and it gets you better answers.

Relationships

Body count

Caution

A running tally of past sexual partners; sometimes used to rate or shame. Can push kids toward bragging or pressure.

  • Ask, “What do friends mean by it in your group?”
  • Reinforce respect and privacy over score-keeping.

Smash

Mild/Context

Casual shorthand for having intercourse (“I’d smash”). Can be jokey, but may also signal pressure or objectification.

  • Listen for tone; jokes vs. targeting someone.

FWB

Caution

“Friends with benefits” — a friendship that includes intercourse without a committed relationship. Often uneven expectations.

  • Discuss consent, boundaries, and emotional fallout.

DTF

Caution

“Down to .” Direct invite for intercourse. Can be playful but is often explicit or pressuring.

  • Model “easy outs” kids can use to decline.

Hooking up

Mild/Context

Vague umbrella for anything from kissing to intercourse. Teens use the fuzziness to dodge details.

  • Ask “What does that mean to your friends?” before reacting.

Sneaky link

Caution

A secret meet-up for romance or intercourse, usually hidden from parents or partners.

  • Talk logistics: transportation, location, and safety plans.

D

Mild/Context

Euphemism for male genitals (“the D”). Can be crude humor or sexual innuendo.

  • Set family language norms without shaming curiosity.

-ussy

Mild/Context

A suffix added for shock or crude humor. Not always sexual, but often used to sexualize random things.

  • Coach “place and audience” — what’s okay with friends isn’t for class/family.

Online behavior & safety

Catfish

Caution

Someone using a fake identity to flirt, scam, or manipulate online.

  • Practice basic checks: reverse image search, video call before meeting, bring a friend.

NSFW

Mild/Context

“Not Safe For Work” — content flagged as sexual, graphic, or otherwise inappropriate for public settings.

  • On shared devices, agree on where/when explicit content isn’t okay.

Finsta

Mild/Context

A private/alternate social account used for closer friends — or to post things away from adults.

  • Focus on digital footprints, not just “gotcha” monitoring.

Harmful/self-harm language

KMS

Caution/Check-in

“Kill myself.” Sometimes thrown around as dark humor, but it can also point to real distress.

  • Always check in calmly: “Are you joking or feeling low? I’m here.”

KYS

Caution/Serious

“Kill yourself” — a harmful phrase sometimes used as harassment. Take it seriously.

  • Address it directly; escalate to school or platform reporting if targeted at someone.
If you’re worried about immediate safety, contact local emergency services or a crisis resource in your region.

Substances & vaping

Juul / Juuling

Caution

Brand/name shorthand for vaping nicotine. Flavors and discreet devices make it easy to hide.

  • Discuss addiction, school policies, and secondhand impacts at home.

Plug

Caution

Slang for a supplier (often of vape pods, weed, or pills). Can signal access to substances.

  • Ask open-ended questions about where items come from and who’s around.

Pull / Rizz / Simp

Mild/Context

Attraction talk: pull (ability to attract), rizz (charm), and simp (trying too hard). Usually playful, but can shade into teasing or pressure.

  • Coach kindness and consent — “flirting” shouldn’t feel like a scoreboard.

Talk tips for parents

  • Ask for context, not definitions: Try “When do people say that?” instead of “What does it mean?”
  • Match the tone: If it’s clearly a joke, start light; if it targets someone, be direct.
  • Agree on boundaries: What’s okay with friends may not fit school, family time, or shared devices.
  • Keep doors open: Short, regular chats beat one huge lecture.