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When someone takes a shit in the back part of the toilet (the cistern), resulting in poo particles in the bowl when flushed. Normally done to someone you dislike!
1) Oh no, some one has done done a backlogger! There is shit everywhere!

2) Dude, I backlogged that bitch at the party last night!
by Phantomlogger March 11, 2011
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Apr 21 Word of the Day
I've been jabbed
by Francesco II March 20, 2021
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