Initialism of Police Athletic League.

Be friends with, hang around with.

(colloquial) A friend, buddy, mate, cobber; someone to hang around with. / (colloquial) An informal term of address, often used ironically in a hostile way.

plural of pen pal

plural of e-pal

plural of gal pal

(UK, military, historical) A group of men who were friends before being enlisted, all of whom were placed into a single battalion in order to incentivize enlistment in the British Army during World War I.

(informal, intransitive) To form a small group. / (informal, intransitive) to become friends with.

A friend with whom one communicates using letters, usually over a long distance.

An Internet pen pal.