To empty your sack, to explode, to empty your sperm ducts, the male orgasm.
Hey Gaff, you've got a big smile on your face - did you unload ?
A sad, depressed, suicidal Wal-mart employee who spends their days in the back room, damaging their bodies and sense of sanity to appease The fuhrer, Sam Walton.
Man 1: Shit, another truck? I hate being an unloader!
Man 2: OHHHH GOD!! KILL ME!!!
Man 3: **already hung himself**
To have an orgasm and release semen
Also see Spurt, Cum
keep sucking, im about to unload!!
to use every possible insult you can when verbally lashing someone until they are completely and utterly served and owned. "Unload" refers to someone "unloading" a clip on someone with a gun, releasing all possible ammo into the other person, resulting death (probably.) This is pretty much the same, except verbally.
Person 1: "My girlfriend thought it would be cool to ask another guy to Prom, so I unloaded on her in front of everyone at lunch. I feel much better."
Person 2: "Wow...dude....you rocked her....I didn't know you had that much hate inside you...."
Shooting a load, cumming, jizzing
MOCO loves unloading all over chicks' faces and titties!
To urinate. The term is regularly used in contexts when there's no toilet in sight.
Stop the car. I've had too much to drink and now I have to unload.