a simp is a person who will be overly nice to someone just to get in their pants and nothing more. They don't care about the person or having a relationship with them they only want them for superficial reasons.
simp : ahahha I acted like I actually wanted her until she got with me then I dropped her
Person : that's some manky behavior
A SIMP is a boy or girl (normally a boy) who will go to insane lengths just for a girl’s attention maybe even just a hug.
Flash: Ayo peter is a SIMP!
MJ: Shut up flash!
A man who gives everything for a woman who gives him little in return
“Jake denis A Carew was February’s biggest simp fr.”
‘Agreed’
A man who moves to shit hole high crime Tampa, leaving his family, his dreams, his goals, his boys all behind because his girl told him he has to!
“That simp bout to move to Ocala next!”