Top Definition
Paraphrasing from the slogan “must-win-battles” it can be applied to a drinking competition or to a good night out with blokes.
Acronyms: MWB
T: Hi bro, how was that mission to the Oktober Fest?
M: I tell you what, it has been like a must-win-bottle, I have never been so drunk!
by milfonian March 11, 2012

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