Premature Checkinulation 

checking in on Foursquare long before your actual arrival at a destination.

Dude 1: 'yo you guys, scott just checked in so he must be here somewhere. we can order in a moment, hang on.'

Dude 2: 'cool dude, but i'm warning you, some of us are starving and running out of patience.'

15 min later.

Dude 2: 'Sumbitch! where is that dude? this is retarded!'

Dude 1: 'Damn bro, i get the feeling that Scott pulled a Premature Checkinulation. lets just order, fuck him.'

Premature Checkinulation by tommypjr April 22, 2010

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