Deriving from the root word "
tubby". A tubkin is a person with just a little bit of "
tub" or fat on their
body, usually in the stomach area.
Guy 1 - "Wow dude that girl is kinda
chubby."
Guy 2 - "Nah dude, she's just a tubkin."
Guy 1 - "Oh yeah dude that's
true, that's
true."