Instead of "whip it out", why not "zip it out"?

More videos Instead of "whip it out", why not "zip it out"?

Whip it out
Whip it out
Whip it out
Whip it out
Whip it out
Sometimes you just gotta whip it out
Whip it out in the morning
Post-shower whip it out fail
Watch me whip it out
Whip it out
Whip it out
Its hard to whip it out sometimes
Whip it out
Whip it out? Yes sir
I love to whip it out
Whip it out!
Powerful whip out
whip it out and shake it all about
How I whip it out.
You gotta whip it out