A fork of Rural Dictionary
After your anus is overbearing with sweat from physical activity, swanus is created. At this point one inserts their hand into their undergarments and gets a nice steaming batch of swanus in their hand. One will then run up to someone who deserves some vial punishment, and rub their hand all over the other's face. This person has just been swained.
Brad owed me ten bucks for the fireworks, so I cooked him up a nice batch during ultimate frisbee and swained his ass as I was passing by.
Simply means the one, Can be either, the chosen one, or the best of the best.
"You trully are the swain"
Usually a Lord, but sometimes just a massive bellend.
Look at that Swaine acting all high and mighty when really hes just a bellend!
To ejaculate, often in a public place
I wouldn't sit in that lawn chair if I was you. You never know who might have swained on it.