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.
by bobshoe August 18, 2006
1 more definition
To make an educated guess.
I estimate that there I a 10 to 90 chance that I will go to church this week.
by kissit December 13, 2013