UCO

noun

Elementary

1

Initialism of used cooking oil (for biodiesel).

2

Initialism of undercover officer.

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u U&C U&E U&O U&Os u's U'wa U-ey u-ie U-M U-RP U-y U.U.K.U.N.U.P.U.S.U/A u/c u/s U2 U2F U=U UA

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