pitch (the) woo
Inf. to kiss and caress; to woo someone. (Old but still heard.) They were out by the barn pitching woo. Old Ted can hardly see any more, but he can still pitch the woo.
Court, make love to, flatter, as in They sat on the porch swing, pitching woo, or He's an excellent salesman, adept at pitching woo. This idiom, which may be obsolescent, uses pitch in the sense of "talk." [Slang; early 1800s]
See pitch the woo