n. The immediate and ridiculously enormous boner that magically appears when it becomes obvious that you are about to engage in sex in a place or with a person (or both) that you shouldn't.
My roommates girlfriend just whispered in my ear that she wants to fuck me now, in the laundry room, while the party is going on. You can't imagine the Danger Wood I got when she said that!
by Tagz November 8, 2011
Get the Danger Wood mug.