Green’s Dictionary of Slang

(US campus) to hit.

1930		F. Jaxon ‘You Got to Wet It’ 🎵 [in context of sexual intercourse] If you bip it and bop it and tell us too bad jim / The next day you’ll be minus of your vigor and vim.
1971		Current Sl. VI 1: Bip, v. To hit hard.
1989		P. Munro Sl. U. 36: bip to hit.