(idiomatic, slang) Corpulence of the buttocks.

In a single-acting engine, an elongated hollow piston, open at the end, in which the end of the connecting rod is pivoted. The piston rod, crosshead and stuffing box are thus dispensed with.

plural of trunk show

An event in which vendors present merchandise directly to store personnel or customers at a retail location or other venue.

(US) participating in a trunk or treat event as a child

(US) An organised alternative to trick-or-treating where candy is given to children from cars in a parking lot.

Similar to or shaped like a trunk (either a tree trunk, an elephant's trunk or a boxy chest).

(plural only) Short-leg boxer briefs

(chiefly US) Synonym of swimming trunks

(rail transport) A main railway line which usually forms the backbone of a rail network. / The main line of a canal, from which other sections diverge.