10-4

Means that the current person that said the signal means that they understand the sentence. Used on radio. Example: school buses, polices cars, etc

Driver 1: We’ve got a boy named Carmen Winstead needed to be picked up ASAP. Driver 2: 10-4.

by FardMonke July 25, 2022

10-4

it means message received

" i got the 10-4 you sent me

by i love book February 5, 2024

10-4

it means yes/alright you fuckin idiot

Mark: can u grab that wrench. Steve: 10-4 brotha

by Dr.Vape December 30, 2025