Gay

A homosexual boy/man.

A boy/man who likes another guy.

Justin: I like dudes..
Brian: You're gay man.

Simp

Do not listen to those jake boys who call guys simps because they respect women.

A simp is person who does too much.
not a person who respects the opposit gender/same gender.

Dude: Yo, i just bought my significant other a whole car, and random gifts.

his piece of shit friend: dude..your a simp.