to enter the dragon, this is when at a sleepover you constantly try to get into the bed of the person who is holding the seepover. also when you try to put the male reproductive organ into a dragon (a stuffed toy because real dragons dont exist silly)
dude, we were at this guys house,and we were about to enter the dragon but we thought it was a bit gay but we got bored so we entered the dragon anyway. he kicked us out though. but since we were all awake we took his sisters stuffed dragon and had some good times.