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1.
The annoying situation of trying to shit in a public lavatory which suddenly becomes busy with people. Effort is made to shit as quietly as possible but failure to do so leads to a loud embarassing splash which is clearly heard by all. So named after the "Doppler effect", whereby a moving object emanating sound, changes pitch as it's distance to the subject listening increases/decreases.
(1) Man(upon rejoining his wife): Honey, I'm so embarassed - do you think they're all looking at me 'cos they know it was me that Doppler shitted?

(2) Hey, I think that's the guy that laid that Doppler shit we heard earlier. Noisy fucker couldn't control it - shoulda put down some paper first.
by sixxon June 18, 2007