Top Definition
Penis, especially in the context of
being bored of saying the word 'cock'
'shlong' and 'trouser serpent'
I want to slip my man tuna into
your fish taco
by Anonymous August 23, 2003
1 more definition
its that caked on goo after you put on deoderant + a few pubes slapped together
that guy has some bad man-tuna
by chipy July 27, 2007

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