simkungdan (심쿵단) is a subfandom nickname for engenes who adore Sim Jaeyun. they used to be known as "jakeys," but Jake changed their name to "simkungdan," which means "heartbeat." simkungdans are jake's heartbeat.
simkungdans are as devious and as intelligent as they come. they would go to any length to keep Sim Jaeyun safe.
"don't talk about sim jaeyun unless you're praising him."
Is a nicotine, energy drink-filled angry redhead man that gets pissed over everything and smashes things apart for no reason, and gets mad over ''yo momma'' jokes. He also likes to play a lot of Fortnite.
Look out of Deivids Simkuns Pinkuns! He just broke a table and punched me in the ribs for no reason!
Simulation of selfie, when a person in the Picture extends the arm away from the scene pretending that he-she is taking the photo, while actually another person is taking it, invented in Brazil by biodados miguelito