Also called a 'Scrubs-moment', and is already defined. :)
I just had a 'scrubs momment': it was My Deja Vu, My Deja Vu :)
when you space out or imagine something crazy or funny happening from an event but instead you really do something boreing as taken in NBC's hit seris scrubs and defined in family guy
1 dude! come back your haveing a scubs momment!
2 dude... i just punched you in a scrubs momment.... hehe...