Big arm muscles, i.e. big biceps AND triceps.
Arnold has some serious big guns.
by Sandro May 29, 2005
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
Large Breasts on a female, Not used for male breasts manboobs
Jesus! Those are some Big Guns!
by Brian May 29, 2005
To load up a list of numbers and dial through them with out actually clicking. A magical way of reaching out through out the country
In the morning your boss says "Load up your big gun",repeatedly, when in fact you already know that is a prerequisite of excellence.
by interesante March 09, 2010