A party involving all of your best guy
friends, usually because the kids involved can't get girls (but not always). Originating in CT, it's often reffered to as a "brosweat".
Called a dude sweat because all of your close best guy
friends are there partying. The sweat part comes from the one kid (usually foreign) who sweats when he drinks, and, sometimes, depending on the location and how many involved, everyone sweats.
Dudesweat is not subjected to a party, as long as your
friends are together and drinking it counts