a gesture you use while getting head before you jizz in her mouth
"He was so sweet he did a courtesy tap so i didnt have to spit or swollow."
While a girl is going down on a guy, the polite act of tapping her on the head or shoulder before he comes in her mouth.
That asshole just came in my mouth, he wasn't even polite enough to give a courtesy tap!
verb: an act of sex following a pricey (over $15) dinner, where the benifactor of the dinner reciprecates out of politness. Can be both passive and active.
After that ho bought my dinner, I had to giver her a little courtesy tap. I mean, that bitch was nasty, but Red Lobster sure is fine.