lose count (of something)
To fail to remember or keep an accurate tally of 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.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
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).
Farlex Partner Idioms Dictionary © Farlex 2017