somebody who is a pussy ass drinker. ya know? that one guy who just can't handle his booze and just embarrasses you at parties and shit. and yet they always talk trash about drinking more than you.

could also describe somebody who is probably a virgin yet they always brag about how they fuck more bitches than you.
"whew, i don't about you guys, but i'm pretty buzzed off this mike's hard bros!"

"okay, one beer wilson"

or

"look at this faggot throwing up everywhere...he had like half a newcastle"

"yea, he's a real one beer wilson"
by boozehound babyboy March 2, 2014
Get the one beer wilson mug.