A type of donkey (the dumb one)

A girl who’s comeback is always “your mom” or “okay and????”

A Basti is someone who gets aggressive really fast and for marginal reasons but makes up for that with subpar intelligence and early loss of hair.

an amazing, cute, rich boy who is the best boyfriend anyone could have. he is always honest and he takes care of everyone. he's always there as your shoulder to cry on and he will love you unconditionally, he makes mistakes but he always shows how he's sorry. he's shy when you first meet him and he's secretly really romantic, any girl would be lucky to have him.

Bitter + Nasty = Basty

A bastard. Basically, some lil cockmo who is a prick.

Shortened form of bastard, meaning "a mean, disagreeable, or otherwise unpleasant person or animal, especially a rival or enemy." Plural form is "basties."