1) A feat of ridiculous marksmanship, usually on Xbox Live. Usually involves a quick headshot, and almost always results in a kill.
2) To have sex with, to fuck, to 'rep choach'
1) Bro did you see me danglesnipe that kid? I came into the room and one-shotted him. Shit was dirty.
2) Last night this bittie called me up, I went to her house and danglesniped that hoe.
When you put your rock-hard nipples into your partner's asshole, warming up the crusty dingleberries making them melt slightly and stick to your nips like a chocolate glazing.