XYS - abbreviation of examine your shirt. used for girls who let there cleavage hang out.
ex- “omg, zontise! X-Y-S! your boobs are hanging out!”

plft- pissed like effing tomatoes. also used for that sound u make when you stick out ur tounge.
ex- “PLFT. my mom said we cant hang out!”

preppy- a word used to describe those who are usually popular, (sometimes) self obsessed, and suck ups.
ex- “she is so preppy!”

retarded- stupid or dumb. also used as annoying.
ex- “my sister is being retarded right now.”
ex- “that homework assignment is so retarded!”

h work- shortened form of homework~ which is an evil assignment handed out by teachers to torture children.
ex- “i didn’t my english h work! im so dead!”