It's a person who is obsessive over the guy or girl who took there virginity. Usually someone who is very insecure, a bitch, needy and/or clingy.
Meg is such a stage 5 clinger, she won't stop blowing up my phone.
Quick, we've got to get John away from Meg. She's a stage 5 clinger.
Meg should stop calling my boyfriend before i beat the fuck out of that stage 5 clinger.
Nicole Thompson - "Why hello there good sir," elequently
Jerry Jabilo - "Shall we run off into my room and F-U-C-K?"
Nicole Thompson - "I'll do you one better ;)"
Jerry Jabilo - "What do you have in mind?"
Nicole Thompson - Nicole pulls a small box out of her purse, "Here is the finest cut diamond in the world...now ask me to marry you!"
Jerry Jabilo - "Holy fuck I gotta get outta here, we've got a stage 5 clinger on our hands"
Nicole Thompson - "NOOOOO! PLEASE, come back! I thought we had something special."
Nicole Thompson - "Oh well, he still loves me..."
Emily: "I dunno some red-headed slut."
Sami: "Sounds like a bitch"
Emily: "She is"
*Proceeds to make every facebook status about her "boyfriend" that never was, and his new girlfriend.*
Kelli: "Did you see what she posted?"
Heidi: "Dude she's a stage 5-clinger"