From Wiktionary, the free dictionary
From Arabic مَسِيخ (masīḵ).
ماصخ • (māṣiḵ) (feminine ماصخة (māṣḵa), common plural ماصخين (māṣḵīn))
- (of food) saltless (lacking salt), insipid (lacking in taste in general)
- boring, unfunny
- مصخ (māṣṣaḵ, “to annoyingly persist”)