Stan

"Stan" does not mean someone who likes a celebrity. "Stan" is an overly-obsessive fan of a particular celebrity who would go to great lengths for them.

"Stan" was a term popularized by Eminem in 2002 when he wrote a song called "Stan," which was about a fan named Stanley Mitchell who was so crazy about Eminem that he put his pregnant girlfriend in the trunk of his car and drove off of a bridge, resulting in their deaths just because Eminem wouldn't respond to his letters.

James: "I love PlayBoi Carti so much... I would die for his music!"
Ashley: "Woah, don't be a crazy Stan."

Crazeigh

"Crazeigh" is a word for a parent who changes the spelling of a normal name so their kid can be unique. Examples of these names are:
Ashleigh (Ashley)
Emmaleigh (Emily)
Erynn (Erin)
Ryleigh (Riley)

Parent #1: "What's your child's name? Mine son's name is Ryan!"
Parent #2: "My daughter's name is Ashleigh... Isn't she cute?"
Parent #1: "You're crazeigh..."