premature e-check-ulation 

In chess, when a player checks the opposition without gaining any advantage do to a lack of foresight and/or planning.

Two moves in and you're already coming with the premature e-check-ulation?

premature e-check-ulation by Johnny J. Rockability June 12, 2008

Premature echeckulation

When a waiter/waitress brings the check to your table even though you are in the middle of eating your meal and enjoying your drinks.

Wayne, "Is that the check for our meal? I'm still eating my steak and I want to order another drink."

Julie, "Yeah, it is another case of premature echeckulation."

Premature echeckulation by Julicles October 21, 2013

Premature checkulation 

When someone checks you in on their smart phone before you've actually arrived at the establishment

Hey Lola, I saw on Facebook you checked me into the Bulldyke Lounge while I was still 30 minutes away. What's up with the premature checkulation?

Premature checkulation by SpikeDurden December 27, 2011