prick twitch

When your penis suddenly twitches in anticipation of arousal from a stimulus that your eyes prematurely judge as sexy. A perfect example of this is when you’re in the grocery store and you spot a deliciously fat ass waddling down the yogurt aisle. Your prick twitches– but then you realize it’s a grotesque old man!

The other day I was driving past the horse pasture when I got a prick twitch! I looked down and said, “False alarm, buddy.”