What is the meaning of Boof?

The sound of a blow or collision; wham.

A low, deep (dog) bark.

A “jump” over hydraulic backwash in a high-gradient mountain river, an action analogous to a skier jumping a cliff.

To make this sound.

To make a boof jump when whitewater kayaking, rafting, etc.

To surface quickly and catch prey by gulping, a behaviour which produces an audible sound.

To have anal sex with someone, usually as the penetrative partner .

To conceal (a prohibited item) in one's rectum.

To consume (drugs) rectally.

To get something wrong or make a mistake.

To puff out in a voluminous way.

Source: wiktionary.org