The annoying habit of not entirely finishing a bottle of beer. But instead leaving a small but significant amount of beer behind.
A phenomenon which often occurs at parties where in the end you notice a certain amount of unfinished beer bottles. Mostly caused by one person, the lauper.
If you are having trouble indentifying this lauper, see if there is a ginger who gets easily drunk.
Dude I just found another unfinished beer, who has been lauping again?
Oh my god I think that ginger guy is lauping.. So annoying!
Could you please stop lauping? It's such a waste of this delightful beer.
I think we should kick the shit out of that lauper who keeps lauping.