When horses are fed oats, they tend to behave more energetically afterward. So if a horse is said to be "feeling his oats" it refers to energetic prancing around the field, or more assertive or excited behavior, and may be literally due to diet. When people are said to be "feeling their oats", it is because the same kind of behavior (higher energy, enthusiasm, assertiveness, or excitement) is observed, even though other causes may be assumed.
Since you're feeling your oatstoday, would you use some of that energy taking the dog for a walk?
The act of rubbing a moist vagina with your hand which gives one the sensation that they are feeding oats to a horse (wet lips, whiskers, hand motions)
Dude, she was so into it, so hot and wet. It was like feeding oats to a horse.
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.