The act of bring stuck or lodged in any sexual activity.

Meaning Stupid Fuck.

A more dramatic fuck...

The way a person with at least 1/4 Navajo blood pronounces the word fuck after having consumed multiple alcoholic beverages.

Sfucking
Sfucked
Sfucker

sfucking: good or bad.

(v.) Usually limited to homosexual male intercourse, to sfuck is to fuck a man in the ass while simultaneously sucking his cock. This isn't possible in all positions, nor in any positions for people with major back problems. Note: a woman wielding a strap-on could achieve the same position, and it would, technically, be considered straight sex.