Fish Thumb
The process of insterting one's thumb(s) into a female's vagina (referring to the smell of the said thumb afterwards).
The process of insterting one's thumb(s) into a female's vagina (referring to the smell of the said thumb afterwards).
Me: Smell my thumb
Friend: Why?
Me: Just do it
Friend: Err smells like sex and fish
Me: Ye I just fish thumbed your mum
Friend: Why?
Me: Just do it
Friend: Err smells like sex and fish
Me: Ye I just fish thumbed your mum
by Bigfatbozwithbigfatballbag January 11, 2019
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