A teenage abode consisting of several layers of blankets and pillows, often in the back of a pickup or van. Activities in the fuck nest include, but are not limited to, deep conversation, rage ranting, angst venting, music blasting, burger grilling, stargazing, smoking, sleeping among lightning/hailstorm conditions, and/or sexual intercourse. For best results, include 2-7 of your favorite teenagers.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.