n.
1.a gymnast who performs rolls and somersaults and twists etc.
2.a glass with a flat bottom but no handle or stem
3.a movable obstruction in a lock that must be adjusted to a given position (as by a key) before the bolt can be thrown
4.pigeon that executes backward somersaults in flight or on the ground
Idiom of the Day
What's keeping you?
What is taking you so long?
"What's keeping you?," the man asked his wife as he waited to go out.