1. (n): Area on the bottom of the tongue where the tongue attaches to the rest of the mouth. (You know what i'm talking about- it's all veiny and full of saliva)
Girl: "I was picking my teeth with a toothpick and I slipped and stabbed my undertongue today!"
Guy: "Wow. You impaled your undertongue? Gross."
Guy: "Wow. You impaled your undertongue? Gross."
by K Floss December 06, 2009
Historically known as "the vagina of the mouth," this area has gained recent popularity among "headventurers" for remaining constantly wet and sensitive.
by Gorilla Adam December 06, 2009
The title given to a person with a severe lack of tongue action during kissing . We’re talking less than sub 20% tongue to kiss ratio. Refer to overtonguer.
She’s a total undertonguer ... she needs to get more movement happening, it’s like kissing a mannequin
by Chippawood April 14, 2019