The most extreme awkwardness you can get between you and another girl. This usually happens after a rumor about you or her is spread or lost of contact for an extended period of time. Most of the time, one or both likes the other or it's a mutual crush creating even more deathness of the ABOD.
"There was a big (ABOD) Awkward Bubble Of Death around me and Ali for a long time since the rumor. It took weeks to break it."