pops

Etymology 1
From.

Noun

 * 1) Father, dad.
 * 2)  A man old enough to be the speaker's father.
 * 1)  A man old enough to be the speaker's father.

Usage notes
Unless the person addressed this way is very close, this can be very disrespectful and belittling.

Noun

 * 1)  the sound and related meanings