портить
Don't foul up this chance. — Не испорти эту возможность.
I hope the chairman won't foul things up, we have everything arranged nicely. — Надеюсь, председатель ничего не испортит, мы так хорошо поработали.
Syn:ball up, balls up, bitch up, botch up, bugger up, cock up, goof up, hash, louse up, mess, muck, prang up, screw up