Definition of flip one's lid
- His mother flipped her lid when she saw what a mess he'd made.
: to toss so as to cause to turn over in the air
: to cause to turn and especially to turn over
: to move with a small quick motion
: a mixed drink usually consisting of a sweetened spiced liquor with beaten eggs
: an act or instance of flipping
: the motion used in flipping
: flippant, impertinent
: a movable cover for the opening of a hollow container (such as a vessel or box)
: the operculum in mosses
: to cover or supply with a lid
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