The Brief: MFW is an abbreviation for "my face when."
“MFW” is usually accompanied by a reaction image and a description of a situation.
MFW it's Tuesday vs. MFW it's Wednesday pic.twitter.com/lQf25Gavjj
— Gavin Jasper (@Gavin4L) August 28, 2018
MFW when waiting on the coffee maker to finish… pic.twitter.com/4Piq1PUYW1
— OREGON I.T. NOT IT⚾ (@OregonJOBS2) August 22, 2018