Juvenihilism is the teenage mental phase where the adolescent begins to resent everything and everyone and starts to question the the world around them. It is usually accompanied with destructive behaviors such as drinking, unprotected sex, blazing, and whining. The scientifically recognized term for angst or teenage angst.
"Because Shade was a teenager in the midst of Juvenihilism, he decided not to do his homework and instead to smoke weed in the graveyard."
by Mr. Sir May 13, 2006