to fust is to lay around one's apartment or house with their best friends in their skivvies and mess around. Actions may include making retarded noises like eeerriiiiiieeee or ugugueuguegu, squeezing eachother's teets, or poking at eachother with toesies that are in dire need of a pedicure. Fusting typically goes hand in hand with shoving food as well.
Let's rent a movie, order a pizza, and stay in tonight and fust.
9👍 15👎