What does slug mean in cooking?

slug means: A plate with an embossed design that prints descriptive labels when it is inserted in certain scales. (in Cooking Dictionary)

What else does slug mean?

One of the many terrestrial gastropods mollusks that have a slimy, elongated body and a flat, rudimentary shell. Usually found in moist habitats. (in Merlin Dictionary)

The sea slug. (in Merlin Dictionary)

Certain insects such as the sawfly have a smooth, soft larva. (in Merlin Dictionary)

An amoeboid cell mass that is slimy and contains spores. (in Merlin Dictionary)

Waiting to get a ride from work, or standing on a roadside to request a driver to pick you up. (in Merlin Dictionary)

The commuter who is a slugger. (in Merlin Dictionary)

Buckshot is a round bullet that’s larger than a regular one. (in Merlin Dictionary)

A swig is a single gulp of liquor or liquid. (in Merlin Dictionary)

Small metal disk, used in vending machines or for gambling purposes. (in Merlin Dictionary)

Preparation of lumps of metal and glass for further processing. (in Merlin Dictionary)

For spacing, a strip of type metal less than the type-high level and thicker that a lead. (in Merlin Dictionary)