From Longman Dictionary of Contemporary Englishjump at something phrasal verbACCEPTCHANCE/OPPORTUNITYto eagerly accept the chance to do something I jumped at the chance of a trip to Hong Kong. → jump→ See Verb table
Examples from the Corpus
jump at • Ewry also took the standing long jump at 11-4 and the standing triple jump with a whopping 37-7.• Cecile jumped at her sharp response.• Her business mind had jumped at the chance of a spot of international acclaim.• Not all the associations are jumping at the chance to buy and sell derivatives.• I signed him for Middlesbrough, and I jumped at the chance to sign him again here.• Sure, I jumped at the job.• I jumped at the offer and within a week or two she arrived and reform was started.• She jumped at the slam and swiveled her head toward the whispers coming from behind the white stairs. 