to entertain the advances of an unattractive, beastly woman, usually at a
bar or club. Often influenced by the later hours of the night when beer goggles are in full effect. Also usually followed by a
buddy coming in to save you by whatever means necessary. The phrase is rooted in a
popular national Beef Jerky commercial.
"Look at
Brent over there at the
bar! He's messin with sasquatch! somebody go save him!"
OR
"
Dude, who was that hideous girl you were talking to last night?"
"I don't know man, whenever I drink to much I always end up messin' with sasquatch"