sniggered

verb

1. (form-of, participle, past)simple past and past participle of snigger

adj

1. (British, not-comparable, obsolete, slang)Damned, in the sense of "I'll be damned if...", expressing utter certainty.

   “I'm sniggered if I knows what it means.”

   “I'm sniggered if this ain't a pretty job!”