We found 2 dictionaries that define the word that's a new one on me:

General (1 matching dictionary)

1. That's a new one on me: Cambridge Advanced Learner's Dictionary

Miscellaneous (1 matching dictionary)

2. That's a new one on me: Idioms

▸ Words similar to that's a new one on me ▸ Usage examples for that's a new one on me ▸ Idioms related to that's a new one on me ▸ Wikipedia articles (New!) ▸ Words that often appear near that's a new one on me ▸ Rhymes of that's a new one on me ▸ Invented words related to that's a new one on me