(sexuality, vulgar) The stimulation of a penis by someone's breasts, usually until the point of ejaculation.

(transitive, sexuality) To stimulate one's penis between the breasts of (a person).

(idiomatic) Egotistical, believing oneself to be superior to others; preoccupied with one's own work, interests, point of view, etc.

plural of fuller

The ratio of the mass of fuel used to the output power of an engine (used especially of aircraft engines)

(idiomatic, vulgar, followed by a wh-clause) I don't know; nobody knows; it is unclear.

(idiomatic) To make a complete change or reform. / (idiomatic) To complete a cycle of transition, returning to where one started after gaining experience or exploring other things.

(vulgar, slang) A person's facial expression during orgasm.

Alternative form of add fuel to the fire.

Involving a full amount of time spent on some activity, especially a job.