Saggy breasts that have succumb to the inevitable effects of gravity. While thin and tubular on top, the compounded collection of adipose tissue gives a bulbous, pock-marked appearance at the base.
Regina's breasts were like two pendulous sacks of sausage - ever swinging to and fro.
The act of someone inserting their small penis into the much larger penis of another man as an act of sexual intercourse, whether it's just the head or the whole thing doesn't matter. It allows fun for anyone of any size.
Steve: Hey Wilson wanna try Big Al's sausage links?
Wilson: Sure, no homo tho
(Steve then proceeds to pull down his and Wilson's shorts and inserts his penis into Wilson's penis)