Meaning

• A friend, buddy, mate, cobber; someone to hang around with.

  "Little Timmy's out playing with his pals."

• An informal term of address, often used ironically in a hostile way.

  "Don't you threaten me, pal – I'll report you to the police."

Meaning

• Be friends with, hang around with.

  "John plans to pal around with Joe today."