I've got dibs on the yellow one!Dibs on the front seat!
Idiom
dibs on something(first) dibs on (something)
to have the right to do or get hold of something.
I had first dibs on dessert and took the pie.
Usage notes: usually used with the verb get or as an interjection:
Dibs on the ice cream!
(first) dibs (on something)
slang The rights to something, or the rights to have first choice of something. "Dibs" are usually claimed verbally. I call dibs on the front seat!Hey, I had dibs on being first in line!
dibs on something
phr. a claim on something. Dibs on the front seat!