3
Big arm muscles, i.e. big biceps AND triceps.
Arnold has some serious big guns.
by Sandro May 29, 2005
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4
a word to describe someone who is overweight or just flat out big. sometimes used to describe old man can be used teasingly or as an insult
hey, biggun, go get me a soda
by runt9 June 08, 2004
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7
1. noun; someone who is or appears to be a larger person whether it be in hight, weight, or both. Might also refer to a person who is the groups 'bitch.' Ref. example 1, 2 & 3

2. verb; an act of doing something stupid or idiotic. Ref. example 4
"Shut the fuck up bigguns."

"What the fuck bigguns?"

"Get over here bigguns, no now! And get on your knees!"

"Bigguns just pulled a bigguns."
by Josh Childress June 17, 2008
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