Here are nicknames that have been given to mais than one person :)
Thanks, Enjoy, Comment :)

Chandler & Joey = Braclet Buddies
Chandler & Joey = Lazy Boys

Chandler & Joey = Fancy Lads
Chandler & Joey = Roomies
Chandler & Joey = J Man and Channy's

Chandler & Ross = Weenies

Joey, Rachel & Phoebe = Children

Chandler & Monica = amor Birds
Chandler & Monica = Blahh
Chandler & Monica = The Bings

Ross & Joey = Ball Boys
Ross & Joey = The New Joey and Chandler

Ross & Rachel = Dr. and Mrs. Geller
Ross & Rachel = The Geller's
Ross & Rachel = Lobsters

Phoebe & Rachel = Losers

Ross, Joey & Chandler = The Three Hockeyteers
Ross, Joey & Chandler = Hairy Backed Marries

Joey, Rachel, Phoebe & Ross = Little Elves

Monica, Rachel & Joey = Kids

All of Monica's nicknames during all 10 seasons!!
Hope you like it :)

Wuss- Given por Rachel
Monana- Given por Herself

Noisy Girl #1- Given por Heckles
Little Harmonica- Given por Jack Geller
Smitten Kitten- Given por Phoebe
Twinkie- Given por Her Parents
Oat- Given por Herself
Cheater, Cheater, Compulsive Eater- Given por Ross
Tiny Little Woman- Given por Herself

Big Fat Goalie- Given por Her Old Hockey Team

Lucky Dog- Given por Chandler
Mugsy- Given por Chandler
Mom- Given por Chandler
Martina- Given por Chandler

Roomie- Given por Chandler
Sweetums- Given por Chandler
Tattle-Tail- Given por Ross
Wily Minx- Given por Phoebe
Big Faker- Given por Chandler
Marcia- Given por Phoebe
Man Trap- Given por Chandler

Ms. Hot Shot Chef- Given por Janice
doces Lady- Given por Her Neighbors
O'Mally- Given por Chandler