holy moo cow 

It means when you are in awe to see or hear something or someone.

Holy moo cow did you see that Yak!?

holy moo cow by Jessica And Carly March 25, 2007

Holy Male Cow 

A creature most commonly found in the Philippines. This creature is holy in the muslim community because of the sound it makes. The sound has been describes as a sort of scream-ish laugh.

Can you hear that? It must be the crazy holy male cow! Everyone loves a filipino.

Holy Male Cow by everyonelovesafilipino July 9, 2011

Holy chebbing cow 

The Christian art of slapping a certain bovine with your phallic member

Bro where you been?

Don’t worry, I Just performed a “holy chebbing cow”

Holy chebbing cow by FinnoVii October 4, 2018

HolyCow 

The product of crossbreeding between a holy shid and a tigur cow, having features of both but generally being larger than either.

In the year 2088, scientists believe that the new breed of geniuses, namely HolyCows, will forever rule the earth resulting in complete peace.

HolyCow by discodork September 12, 2003