Stemming from the term fish taco, a tuna hot dog refers to the dildo worn by a woman during sex.
Hey baby, wanna come back to my place? I've got a tuna hotdog with your name on it.
by Stanley Upstanding April 01, 2011
1 more definition
The Term used to describe an individual who has become so high from marijuanna that he misreads the lyrics to "Do the Hustle" as "Tuna Hotdog" - this is all while playing Super Mario Cart and playing with a black light.
da da da dadada da da - da da da dada - Tuna Hotdog!
by Tuna Hotdog April 18, 2009