>>18077509Syntribating is when a girl squeezes her legs together tightly and sometimes sort of rocks back and forth a bit as a form of masturbation cause it stimulates their clits. It was during class and the teacher was lecturing about some boring snca and she was very tightly squeezing her legs and sort of rocking or sliding a bit and had her eyes closed but her facial expressions were still changing a bit. She looked pretty into it. That specific girl is also kind of known for being a bpd slut.