When you and your buddy practically have the same penis. Not to be confused with dongleganger.
Broski 1-Bro were pecker pals! Our meat sticks look exactly the same!
Broski 2-For sure my dude! Do you think if we blindfolded your chick she could tell us apart by our dongs?
Broski 1- Only one way to find out!
A grower that smokes you out and/or gives you weed. Usually someone you've known for awhile or became friends through mutuals, a good old pal to have, indeed.
Person: have you tried do-si-do?
Person: ya I got an 'oldpal' that gave me some last week!