A man who is one's uncle in two different ways, e.g. a brother of one parent and a brother-in-law of the other.

Alternative form of if my aunt had balls, she'd be my uncle

plural of corridor of uncertainty

(chiefly Southern US) A personification of the American welfare state.

having an abundance situated between common and uncommon.

Being or relating to a form of script that resembles a cut-down version of uncial, used from around the 3rd to the 8th century.

(Singapore) A male taxi driver in Singapore.

plural of unconditional surrender

(medicine, colloquial, derogatory) Nuclear medicine, in reference to the poor resolution and high diagnostic uncertainty associated with nuclear medicine imaging.

(US, slang) Federal government.