a passage way allowing rear entry to somewere, someone or something.
"do you mind iff i throw this large pole up your back entry old boy" "no not at all thair's plenty of room iff you have any other large things to go with it"
The process of switching from one female to the other through sexual intercourse. Whether it's oral, anal, or vaginal, the females must be on each other or close by in order to complete the switch back fast enough.
Sarah and Tina were laying on top of each other kissing, while Jim was preforming the switch back on both of them.
a light, almost airy aftertaste
Comes from the perfume industry meaning the last odor left on the skin as perfume fades
Derp: I liked the aftertaste, but later the back note was annoying.
Herp: An aftertaste can't leave a back note. Back notes are a type of aftertaste.
Something gay little Austin frat boys say Everytime they finally win a game.
Bro 1: Hey bro, we beat Texas State!
Bro 2: Nice, Texas is back!
to leave a pub/club/party early to go home to bed without telling anyone.
sam; where's nick gone?
dave; oh, i think he has just back doored it, he has been being a bit of a girl tonight.
sam; god, he always has to back door it, what an idiot, i have just been to the bar and go thim a pint!
The USB port for your charger cord.
“Yo Mom, you got a back piece I can borrow to charge my phone?”