The obsessive compulsive practice of making the sequence, pressure, and/or intensity of sensations match on both sides of the body, rubbing toes together or making every footstep have a symmetrical amount of pressure for example. This behavior is shared by both people who suffer from OCD and autism, the term for which has been coined by u/GoatsWithWigs after reaching out to r/autism with a comic depicting symming via toe flicking. Not to be confused with stimming.
Person A: Why are you tapping your feet on the ground?
Person B: Sorry, I was just symming. One foot tapped hard on the ground, so I had to tap my other foot just as hard to make my feet feel symmetrical
Person B: Sorry, I was just symming. One foot tapped hard on the ground, so I had to tap my other foot just as hard to make my feet feel symmetrical
by Mel Goats June 23, 2022
Get the Symmingmug. 
Jim: your not a cool person
Jimmy: sym
Jim: I don’t have one- she died this morning
Jimmy: oh sorry
Jim: it’s fine
Jimmy: oh ok, sym
Jimmy: sym
Jim: I don’t have one- she died this morning
Jimmy: oh sorry
Jim: it’s fine
Jimmy: oh ok, sym
by Ploppuwoo September 8, 2020
Get the Symmug. 