Nike Up

To erase all fear or apprehension and "just do it".

We've got two choices here gentlemen; either we lay down and quit, or we nike up.

by Sportscenter444 June 7, 2011

Nike it up

Another way to say "just do it". Stems from NIKE's slogan "Just Do It". "It" is a pronoun in this case which can and will be switched out for a more specific object.

We told him to Nike it up after he told us how much homework that he was complaining about.

We told him to Nike his homework up after he was being a total B.A.D.D.

Yo, look at the b-rod
Yea, i wish i could Nike it up

by Kepah November 22, 2006