The act of being a mongoloid.
Quit monging out, SB.
by colin- September 14, 2005
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to chill to an extreme level
your monging out so hard that your scholngs out and you just dont care

monging is being so relaxed you look retarded
and your schlong is your dick
person a: heard you had a heavy night last night, you gonna come out tonight?

person b: nahhh tonight im just gonna mong out with my schlong out

peson a: ahhh good call!
by cboi blad April 20, 2009
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