Smoother than butter.

Slicker than butter.

Slipperier than butter.

A graceful or easy occurrence.
The pilot eased the plane in for landing like wet butter.

The aptitude test went as smooth as wet butter.
by Douggles June 15, 2009
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to do anything with well-timed manner and grace. this can be used in almost any instance as long as said with a smooth voice and an enunciated butter..known to have derived from the northwest college crowd
Wayne Rooney really wet the butter with that shot

or

"what you up to man?"
"nothing much really, just driving around wetting the butter.."
by WayneRooney19 February 4, 2010
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When a plane barely takes off of a runway and lands very smoothly in the sea in front of the runway (unintentionally).
Oh shit, did that 737 do a wet butter at Madeira?
by BigMacaroni January 13, 2020
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