Jeffy Fresh, Byrone, and Rosie

The 90's teenagers are a set of minor characters in Gravity Falls. They have so far only appeared in flashbacks.

History
The 90's teenagers first appeared in a flashback in "The Inconveniencing", where they were depicted protesting Pa and Ma's banning of teenagers from Dusk 2 Dawn by playing "Homework's Wack" on a boombox and dancing outside the store, which led to Pa and Ma having double heart attacks that killed them.

The teenagers appear again in "Summerween", where they are depicted tossing "loser" candy into the Gravity Falls Dump in a flashback. The candy would eventually collect together and gain sentience, becoming the Summerween Trickster.

Personality
The teens seem to have stereotypical personalities, trying to act cool, laidback, and rebellious. They are either dancing to rap music or dumping loser candy into the junkyard.

Appearance
The 90's teens are dressed in stereotypical 90's clothing: "cool" hats, shirts, vests, and pants can always be found on them. They make sure they appear in a cool manner by doing things such as wearing earrings and sporting "cool" hairstyles.

Trivia

 * The 90's teenagers are indirectly responsible for creating three of the creatures Dipper and Mabel have encountered so far: Pa and Ma, and the Summerween Trickster.