A man or woman wielding a weapon, i.e. a gun, knife, or deadly fists that demand you allow them to take your underwear in collateral with your life. The Swass Bandit may go impromptu during the theft and demand you spread your butt cheeks so they can sniff and lick your sweaty asshole. This will usually happen within the hottest months of the summer.
Whilst walking home home from work, it was really hot and I was ambushed by a Swass Bandit. She came out of the bushes and demanded to sniff my panties. I happily obliged as the knife was sharp, and readily spread my ass cheeks to indulge the Swass Bandits fetish.
The name for the condition you find yourself in when you have imminent blowout diarrhea and are in the last steps of a hurried dash to the nearest toilet.
I totally had the Mexican meat sweats yesterday and blew up the bathroom at Guitar Center."