A term used by the Quake competitive community. It basically means to retreat and play on the defensive, rather than rush forward and combat the enemy. It comes from the command "+back" which is used to move the player backwards.

The antonym to this term is +forward
Player 1 took a beating after that fight so he needs to +back until he can get some health and armor.
by Veovan July 21, 2010
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Two DJs playing together. While one DJ is spinning a record, the other one is picking a new track. As they normally store their records behind them this usually makes the DJs face backwards on each other.
DJ Tinkywinky and DJ Dipsy played back to back (b2b) last night.
by haileselassie December 06, 2010
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When you're totally surrounded by an enemy, and there's no escape, a trusted friend stands with his/her back touching yours, so you both can fight in efforts to protect each other's back. This can be done physically as well as verbally. The unity and dedication of the two coming together in this formation to act as one is a tactical defense whatever the battle may be.
At the Hot Gates (in the Hellespont), there were only two Spartans left against the Immortals who had encircled them. The two stood back-to-back defiantly in complete confidence of each other's capabilities and dared the enemy to attack, thus saving Western Civilization.
by Kit Carson January 16, 2010
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It's when you have sex with 2 separate people without a shower in between.
"Bro, how did your date go?" "So well, we hooked up and then I went over to Sasha's afterwards". "Bro, that's crazy". "You're telling me, I didn't even get time to shower in between, ran it back to back".
by Dreamboys August 06, 2020
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