lose count

lose count (of something)

To fail to remember how many of something there is, often due to there being a great amount. At this point, I've lost count of the number of times they've yelled at me! Ah, shoot—I lost count! I'll have to start the whole inventory over again now.
See also: count, lose

lose ˈcount (of something)

not know how many there are of something: He’s had so many different jobs that I’ve lost count (of them all).
See also: count, lose
References in classic literature ?
It felt that, in spite of all possible pains, It had somehow contrived to lose count, And the only thing now was to rack its poor brains By reckoning up the amount.
Living down in the country you lose count of time, and I forgot that it was July, when people go out of the city.
I take the ScotRail cattle truck to Glasgow every day and when I look out over the nearby M8, I lose count of the number of cars which only have one person in them.
TREVOR Hemmings - boss of Arena Leisure and owner of Blackpool Tower - must be beginning to lose count of the horses he has in training.