A fork of Rural Dictionary
To shtup, contrary to what these morons have written here, means, literally, to stuff. It comes from Yiddish. Think about it -- how do you get from "nudge" to "fuck"? Related: after a male shtups to completion, he speichs.
Parental (read: grandparents) usage: Just shtup all the bags into the car so we can be on our way. Modern usage: Q: So, how did your date go last night? You give her a shtupping? A: Oh yeah, I shtupped her like a thanksgiving turkey, then speiched all over her face.