ruffle up


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ruffle something up

to raise something, such as feathers, up or outward. The bird ruffled its feathers up and started to preen. It ruffled up its feathers.
See also: ruffle, up

ruffle up

v.
To make some surface less smooth by partially lifting the individual parts that make up that surface: The wind ruffled up the bird's feathers. Don't ruffle my hair up.
See also: ruffle, up