The time of day at which lunch is eaten.

(informal) The consumption of alcohol with no (or little) food at lunchtime

Any processed, prepackaged molded meat served sliced for consumption in sandwiches or salads.

(idiomatic) a sexual act in which a pouch of clingfilm or similar material filled with faeces is placed in the mouth of one participant and subsequently penetrated by the second participant.

A working lunch at which important discussions may be held, and important decisions made.

(US) A lunchbox (food container) shaped more or less like a bucket with a handle.

Away eating lunch or for a midday break; especially, away from work or a job. / (idiomatic, informal) Clueless, inattentive, or careless.

A picnic meal, sandwiches or anything packed and intended to be eaten away from home.

(Britain) A light meal of bread, cheese, and pickled onions (or cucumbers), etc., especially one served in a pub at lunchtime.

(US, dated, chiefly eastern Pennsylvania) A lunchbox.