To consume (drugs) rectally.
To puff out in a voluminous way.
(Of fish, especially barramundi) to surface quickly and catch prey by gulping, a behaviour which produces an audible sound.
To conceal (a prohibited item) in one's rectum.
To get something wrong or make a mistake.
To make this kind of jump when whitewater kayaking.
To have anal sex with someone, usually as the penetrative partner (possibly with negative connotations).
To make this sound.
A “jump” over hydraulic backwash in a high-gradient mountain river, an action analogous to a skier jumping a cliff.
The sound of a blow or collision; wham.
To use a trephine during surgery.
To perforate with a trephine.
A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan.