z-cow

Anyone who believes something to be true if someone said it was on the internet.

Amy is such a z-cow, after seeing "parkalot" on Myspace she was determined to find the definition.

by M.C. Chink-a-lot January 23, 2008

z-factor

The person who is always holding up the group. Consistently the straggler in the group and frequently for "dumb" reasons.

"Where's the z-factor?"
"Rich? He's back there reading that street sign."

by reade January 6, 2009

z-ray

Two better than X-ray.

No example nessecary.

by MPseMp May 26, 2005

Z Day

This term was used by the British Expeditonary Force in preparing for the Battle of the Somme in 1916. It culminated previous days of artillery bombardment called U,V,W,X,Y days. The actual time of attack was called Zero-Hour. Compare these with D-Day and H-Hour used by American troops late in that conflict, terms which became more widespread during WWII.

"Z Day" is found in numerous historical accounts from the time. For instance, from Guy Chapman's wartime memoir, "A Passionate Prodigality": "We were waiting for Z day. ... Once more Z day was postponed."

by New Nutmegger August 22, 2011

z-boose

the last person to wake up in your household.

Abby: how late did you sleep in this morning?
Sam: I was the z-boose.

by sam:) January 27, 2015

Z-Bar

Organic Clif Bar for active kids. Best Flavor is Peanut Butter.

Robert Upland and I just went mountain biking and were pooped! Luckily my mom just went to Costco and picked me up a box of Z-Bars. Woah! Chocolate Chip, my favorite!

by My fingers smell like butt June 23, 2009

z bar

Z-bars are the street name for XANAX tablets.

Lemme get some Z bars? I need to slow things down some.

by Gamberro Salvador January 28, 2007