A girl's tongue that is so big, in width and length, that, when used to suck a dick, it resembles a hotdog buns wrapped around a hotdog.
Homeboy #1: Yo did you see that girl's tongue bro!
Homeboy #2: Yeah man! That girl's got a straight up hotdog tongue! You know she gives good head!
Homeboy #1: damn man, you know those blowjobs are high quality!