From Longman Dictionary of Contemporary Englishchapschaps[plural]DCDSH protective leather covers worn over your trousers when riding a horse → chapCHAPSCHAPS /tʃæps/ (Clearing House Automated Payment System) an electronic system that is used to transfer (=move) money from one bank account to another by computerFrom Longman Business DictionaryCHAPSCHAPS /tʃæps/ BANKINGabbreviation for CLEARING HOUSE AUTOMATED PAYMENT SYSTEM