Inadequacy or incompleteness.
An insufficiency, especially of something essential to health.
The codimension of a linear system in the corresponding complete linear system.
The amount by which the number of double points on a curve is short of the maximum for curves of the same degree.
To turn one's back on, to show one's (clothed) backside to, as a sign of disrespect.
To fuck. (Compare bum (verb).)
To cheat.
To ramble; to move (or talk) aimlessly.
To move (someone or something) around.
The buttocks.
A cut of meat from the rump of an animal.
The hindquarters of a four-legged mammal, not including its legs
A remnant, as in Rump Parliament.