A term used to describe the act of anal sex, popularised by Keith Lemon.
(courtesy of Keith Lemon),

'I want to smash your back door in and spunk on your tits'.
by sphilli2004 February 14, 2011
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One's will to carry the team, and not let any obstacle come in between.
I can't believe we were about to lose that tennis match. Way to put the team on your back and win it all!
by your friend greg April 17, 2011
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If somebody "always has your back" it means that they are always there to support you, protect you, help you, etc.
Your best friends, family members, etc. are people that usually always have your back.
-your best friend always has your back in times of need.
by HomieJ October 27, 2013
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To bang someones back passage with either a penis , cucumber or rolling pin!
Hmmm Smash your back doors in - Do we really need an example?? I have pictures if that would be more useful?
by Steffithebackdoorsmasher June 17, 2011
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Verb. Meaning to have a part in a fight in the direction that the primary fighter is facing, or also to mean a person will accompany another in a stupid or foolish act.
"If Jerry swings on me, will you be there?" "Yeah, I got your back" or "I'm going to go drink a fifth tonight, wanna go?" "Sure man I got your back"
by That one army guy September 30, 2013
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