"his promise is not worth a damn""not worth one red cent""not worth shucks"
Verb
1. wish harm upon; invoke evil upon;
"The bad witch cursed the child"
Adjective
1. used as expletives;
"oh, damn (or goddamn)!"
2. expletives used informally as intensifiers;
"he's a blasted idiot""it's a blamed shame""a blame cold winter""not a blessed dime""I'll be damned (or blessed or darned or goddamned) if I'll do any such thing""he's a damn (or goddam or goddamned) fool""a deuced idiot""tired or his everlasting whimpering""an infernal nuisance"
Adverb
1. extremely;
"you are bloody right""Why are you so all-fired aggressive?"