an exclaimation said when you suddenly out of the blue see a large amount of cleavage. derived from saying holy cow or holy shit when you see something that shocks or surprises you.
girl 1: hey wanna see a picture of me in my prom dress?
girl 2: sure *gets pic* holy cleavage!
girl 1: yeah sorry about that...but do you like the color?
by blahbi March 5, 2006
Get the holy cleavage mug.
an exclamation used when someone is showing entirely to much cleavage.
girl with a low cut shirt walks up
"HOLY CLEAVAGE BATMAN!"
by xelA13 September 4, 2008
Get the holy cleavage batman! mug.