[ on-uh-gen awf-uh-gen, of-, awn- ]
/ ˈɒn əˌgɛn ˈɔf əˌgɛn, ˈɒf-, ˈɔn- /
being in force or inoperative by turns, especially spasmodically and unpredictably: an on-again, off-again romance.
Origin of on-again, off-again
First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019