This is a penis that is rather girthy but short in length, similar to a tuna can. Often hard to work with while trying to have relations. Performing Doggy-Style with a woman who has 'back' is out of the question for a man sporting a 'tuna can'. The tuna can cannot enter the zone.
Bill was a very funny guy and great to be with...but we had to break up. He had a tuna can penis and couldn't satisfy or even enter me.
by Smellman March 05, 2009
A short, but very wide human penis. It is widely accepted that one does not have intercourse with a tuna can penis, but rather uses it to punch their lover in the cunt.
Shelly: "I heard Mike has a thick dick. I am so jealous you hooked up with him!"
Nelly: "Umm, we didn't hook up so much as he punched me in the cunt with his tuna can penis"
Shelly: "gross."
Nelly: "Umm, we didn't hook up so much as he punched me in the cunt with his tuna can penis"
Shelly: "gross."
by Tunacanenis July 31, 2011
An unusually wide piece of poop, shaped like a tuna can, that leaves your ass feeling gaped after shitting.
by Cous Cous June 08, 2009
Megan: I told Paige that my favorite position was doggie style. So we tried and his tuna can dick felt like someone curb stomped my puss.
by Chub Mackerel August 04, 2019
by Russ_SoCal October 27, 2007
by m-blaze November 30, 2009
"Todd's a really go-getter. I heard he gave tammi a penile episiotomy, must have that tuna can girth"
by thefox.com January 02, 2019