When you pull out of your special friend's ass and your cock is covered with santorum, but you're in a hurry, so you park it in another hole without going for the washcloth.
"Sometimes, in the heat of the moment, it's forgiveable to (give a rustyrooster)." -- Becky, "Clerks II"
When you wake up with a stiff morning wood and have anal sex BEFORE you pee.
After the third alarm rang into the morning, it was clear that lazy Kathy was not going to get out of bed any time soon. An irritated Joe decided a rusty rooster might be more persuasive, plus he’d been scrolling through Facebook in bed next to her long enough.
Someone who jumps from one relationship immediately into another one.
Serial monogamists can not stand to be alone and often suffer from vast commitment and insecurity issues.
Because they jump into relationships immediately after the previous one has ended, serial monogamists typically don't take the time to reflect on their behavior or why their previous relationships failed; thus, they end up making the same relationship mistakes over and over again.
Person 1: Damn, Dustin already has a new girlfriend?! It's only been two weeks since he broke up with his fiance! I think he's a sociopath.
Someone or something that bites your ankles.
To a postman, an ankle biter is often known as a dog.
To an adult, an ankle biter may be a toddler.
To hikers, an ankle biter is sometimes a tick.
And so on.