Red Ribbon

When you decide to go bareback on a chick who is on her period. Just after you cum and pull out, that little bit of stringy cum is still attached to your dick is covered in blood, resembling a thin red ribbon.

Casey found himself both repulsed and excited when he saw the red ribbon on his cotton sheets.

Losing your Pink Ribbon

When a straight dude sleeps beside a gay guy and nothing happens besides sleep the whole night.

"Tell me about Losing your Pink Ribbon again."
"I lost my Pink Ribbon to Steve last night"
"The gay dude. No sex? You sure?"
"Yep, just sleep... maybe some spooning."

Dunkle Ribbon

Dunkle Ribbon is another name for someone's anal sphincter. The muscle's in charge of the excrement fecal matter.

dude did you fart? that stinks your fucking dunkle ribbon.