তালিকা of nicknames used on স্বতস্ফূর্ত (Source: স্বতস্ফূর্ত Wiki, some from memory). A few have been left out so if আপনি can think of any just post in comments)
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RACHEL
Rach, A-Rach, Babe, (Finn)
Miss Bossy Pants, Eva Peron (Mercedes)
RuPaul, Man Hands, Treasure Trail, Stubbles, That Thing, Sweetie (Quinn)
Yentl (Dakota, Santana)
Boy Hips (Lauren)
Benedict Arnold (Kurt)
Dwarf, Midget, Hobbit (Santana)
Barbra Streisand (Suzy Pepper)
Lady, Michele (Sue)
Baby, My Hot Little Jewish American Princess (Puck)
The Jew (YouTube user)

FINN
Finnocence (Santana)
Frankenteen (Santana, Dakota Stanley, Sue)
Sugar রশ্মি (Sue)
T-Rex...

All of these are in my own opinion. The প্রবন্ধ is not about the actual quality of the songs, but আরো of their use in the show. A short note is included after the শিরোনাম to note the main issue(s). "Done intentionally" means that the faults were acknowledged in the show.
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1.    Cell Block Tango - Poor song choice and offensive; done intentionally. The girls just found out that someone is in an abusive relationship. This was probably one of the worst songs they could have chosen to sing. As ব্যক্ত in the show, it was দ্বারা a bunch of violent, crazy women who killed their significant...