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1.
Acronym for the adjectival phrase; "(the) Most Ballin' Shit Eva'"
MBSE is the superlative form of hella tight.

Origin: Dave Chappelle Show.
You're flying in outer space with Thom Yorke? MBSE!
by Andizzle Invisible September 10, 2006
 
2.
Acronym for the adjectival phrase; "(the) Most Ballin' Shit Eva'"
MBSE is the superlative form of hella tight.

Origin: Dave Chappelle Show.
You're flying in outer space with Thom Yorke? MBSE!
by Andizzle Invisible September 09, 2006
 
3.
Acronym for the adjectival phrase "(the) most ballin' shit eva"
Dude, that party last night was MBSE!
by brdy_ September 09, 2006