a sexual act in which you masturbate covered by a blanket or sheet and at the point of ejaculation you move your dick in a helicopter motion
tyler: I was masturbating to savannas snapchat,and I accidentally did an undercover tornado.
josh: you better get that shit cleaned up before your mom finds it
josh: you better get that shit cleaned up before your mom finds it
by Rice Crispin March 9, 2018