double Dutch doub·le·dutch uncommon noun 1. an incomprehensible talk Synonymsdouble Dutch 2. the difficult version of jump rope in which players jump over two ropes that are swung in a crisscross manner by two turners Synonymsdouble Dutch Related words Broader terms jump ropegibberish WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.