SIMP

(Sucker Idolising Mediocre Pussy) Basically a person (usually a guy to a girl) who does nice things for.someone they like (usually involving the simp sacrificing their time,money e.t.c. ) in a desperate attempt to please them. The person does not often get with the simp afterwards despite all this

"Can you believe Abel donated 1000 to some Twitch streamer girl he likes"
"Damn...I always knew he was a simp."