<unk> -grip and<unk>  are slang terms for suffering adverse effects from one's aggressive and recurrent male masturbation technique, which result in an unsatisfactory experience when engaging in regular sexual intercourse with a partner. A similar condition, dead-vagina syndrome, has been asserted to exist in women.
Death-grip syndrome
Sick building syndrome
Winter-over syndrome
Sudden wealth syndrome
FACES syndrome
Brainstem death
Ulysses syndrome
Otodental syndrome