A name given to, mainly females, for being excessively gooey, especially around the underarm area. They are known for having various house hold objects disappear in their goo. They will often avoid wearing bikinis but when they do it is not a pretty sight that you'll want to be around. Layers and layers of goo will pour out eventually consuming everything in sight.
Wonton: Hey Devon!!! Where the fuck is my laptop?!
Devon (tubby goo monster): I don't fucking know!!! Have you checked underneath all my goo???
Wonton: I told you to lose weight you fucking tubby goo monster before your goo eats the rest of my shit!
Devon (tubby goo monster): I don't fucking know!!! Have you checked underneath all my goo???
Wonton: I told you to lose weight you fucking tubby goo monster before your goo eats the rest of my shit!
by creatorofthegoo August 1, 2012

by definethetings October 5, 2016

Slang term for the US 20-Dollar-bill, as of the 2016 edition containing a picture of Harriet Tubman.
Cashier:How can I help you, Miss?
Jackie: Could you break a tubby for me?
Cashier:Sure. How do you want it?
Jackie: Could I have two 5's and the rest in ones?
Cashier:Well, I have some 5's, but I don't have enough 1's. Are quarters fine with you?
Jackie: Oh, that's even better! In that case, I won't have to worry about the small change for the laundry.
Cashier:Here you go!
Jackie: Thanks a million!
Jackie: Could you break a tubby for me?
Cashier:Sure. How do you want it?
Jackie: Could I have two 5's and the rest in ones?
Cashier:Well, I have some 5's, but I don't have enough 1's. Are quarters fine with you?
Jackie: Oh, that's even better! In that case, I won't have to worry about the small change for the laundry.
Cashier:Here you go!
Jackie: Thanks a million!
by Upset Andy J. June 1, 2016

by The lion King 345 October 14, 2025
