When you're ridiculously horny. So much so that you can't focus on anything because your mind keeps wandering back toward your horniness.
Man 1: Do you want to go to the bar?
Man 2: I can't man... i'm going to be rubbing up against everything i see..
Man 1: You're like a donkey in the spring.
Man 2: I can't man... i'm going to be rubbing up against everything i see..
Man 1: You're like a donkey in the spring.
by slyest January 19, 2012
Get the Donkey in the Spring mug.