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
turn tail
to run away from trouble or danger
The young boys turned tail when the farmer began to chase them from the field.