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Used when seeing something so unbelievingly mind blowing your brain has a spasm in an attempt to keep your head from exploding.
~You walk outside and see two hot, half-naked lesbians making out on your front porch~

You: "Holy Duck Fuck..."
by ThatEducatedBlackGuy November 17, 2010
1) A Phrase Someone Might Say When They Are Surprized. The Person Might Be High, Drunk, Or Mentally Unstable (Insane) Or A Combination Of The Three.

2) Two Ducks From Heaven Having Sex. Need I say More?
You Die And Go To Heaven And See Two Ducks Having Sex.

You Might Say "HOLY DUCK FUCK!?"
by thatawesomeguywithweirdmum September 08, 2010