Joist

[Sarah]

A piece of timber laid horizontally, or nearly so, to which theplanks of the floor, or the laths or furring strips of a ceiling, arenailed; -- called, according to its position or use, binding joist,bridging joist, ceiling joist, trimming joist, etc. See Illust. ofDouble-framed floor, under Double, a.

[Sarah]

To ram one another. Typically used with reference to two homosexual males, or two homosexual females wearing strap-ons.
Have sex, rail, bone, make love, anally fon