A hybrid of 'Excuse Me' and the Japanese word 'Sumimasen,' which means 'Pardon Me,' it is a term used by wannabe Japanese-English bilinguals who have done something stupid, want to only marginally ask for forgiveness, and rejoice in thinking they sound witty.
The action of showing confusion after an absurd event. This term became popular after a meme rememe, and got spread by the 9 year old army.
Usually when done correctly, the arms will form 2 sine waves, the atmosphere around you will become distorted and the color configuration will become abstract.
EXAMPLE 1
A : What’s your biggest fear?
B : ...
A : ...
B : SOMEBODY ONCE TOLD ME THE WORLD IS GONNA ROLL ME I AIN’T...
A : Excuse me what the fuck?
EXAMPLE 2 (Edgy)
Random Template : *exists without being a meme*
Reddit’s 9 year old memer : Ayx queues me, What the EH?
Someone who at a moments notice can pull an excuse for just about anything out of their ass. This happens often when defending a sports team or the reasons someone is dating busted girl. Everyone knows the usual list of excuses and weather they say it or not they are all thinking "man what an excuse merchant".