1. If I were a dog right now, i'd probably hump your leg.
2. I want to "pounce" you.
3. I'm in heat... let's fuck.
4. I have a concealed boner with your name on it.
5. I am trying to lure you into bed
Very strong feeling, almost like you want to grab them and do something to them, usually "naughty" in nature.
Has tremendous effects on your thoughts the rest of the day when you know they like you back.
Can also mean: A mental purr that lasts for a short while after you become slightly aroused by a crush, followed by mild genital arousal.