When multiple males who fornicating with one female (or male) at the same time, (A.K.A- "running a train") , frequently alternate the usage of one condom amongst themselves.
me: Dude me and the crew ran a train on Perla last night!
Dew: Dirty Perla?
Dew: Gross! Did all of you have condoms?
Dew: Were you guys jack wrapping?
me: Hell yea!