estimately 

Approximately.
PS: Start using this so we can make it a word and I can argue that I don't get marked down for using it. Thanks.

2.5 + 2.6 is estimately 5 (rounding down).

estimately by #1 bae October 1, 2015

estimated prophet 

This describes someone who is a phony prophet for money, a prophet for profit.

Reverend Salvation made millions as an estimated prophet in the pray for pay business!

estimated prophet by I, Wreckerrr February 22, 2017

Estimated Time of Carrival 

The estimated time for one person to get from point A to B in a car.

Yeah, my estimated time of carrival is three minutes.

"Alright Matt said he'll pick us up in ten minutes."
"Matt? Are you serious? He has terrible ETC."

Estimated Time of Carrival by Blaze Poland September 28, 2009

estimate 

To make an educated guess.

I estimate that there I a 10 to 90 chance that I will go to church this week.

estimate by kissit December 13, 2013

EDT (Estimated Drinking Time) 

It's what you wait for after working a 65 hour week

I need beers, what the EDT?

EDT (Estimated Drinking Time) by Lloyd D. March 25, 2005

estimate 

A term used by IT staff this typically indicates they have no clue when something will be done.

I estimate the order will be completed by Friday, but in reality, I don't have a fucking clue.

estimate by bobshoe August 18, 2006

under-estimate

an estimation that is too low; an estimate that is less than the true or actual value

I think Kendall under-estimated allen when they went out to the movies.

under-estimate by AKB jr January 28, 2008