What is the meaning of Mack?

An individual skilled in the art of seduction using verbal skills; a seducer

A pimp or procurer

To act as pimp; to pander.

To seduce or flirt with.

A raincoat or mackintosh.

An element of a ship's superstructure which places the function of a ship's mast on its exhaust stack, adding the skeletal supporting structure to the smokestack to support the mast's complement of functions.

Oriental poppy (Papaver orientale)

obsolete typography of makk

a gas station

Source: wiktionary.org