(informal) Visible signs of pregnancy, noticeable abdominal swelling in a pregnant woman.

Alternative spelling of bump and grind

(idiomatic) A sexually suggestive dance involving exaggerated hip movements, especially a striptease dance.

(idiomatic) To perform such a dance or such movements.

(US politics) The rise in support (as shown in polls) a presidential candidate receives after the national party nominating convention.

Alternative spelling of bumpoff.

(computer graphics) Rendered using bump mapping.

(UK) A hard hat. / (US) A form of baseball cap.

(computer graphics) A technique where a perturbation to the surface normal of the object being rendered is applied to each pixel, based on a texture map, prior to calculating the illumination, so as to produce a richer, more detailed surface representation.

plural of bump cap