1 definition by NoOneImportant.

Top Definition

Iblm is an acronym for imma be late man or I’ll be late man something along those lines. You always have that one person like OMG they are never on time!

Friend 1: Hey where u @?
Friend 2: IBLM! Sorry!

by NoOneImportant. June 12, 2020

Buy a IBLM mug!