We found 10 dictionaries that define the word top whack:

General (5 matching dictionaries)

1. top whack: Merriam-Webster
2. top whack: Collins English Dictionary
3. top whack: Cambridge Advanced Learner's Dictionary
4. top whack: TheFreeDictionary.com
5. top whack: Wiktionary

Business (1 matching dictionary)

6. top whack: Legal dictionary

Computing (1 matching dictionary)

7. top whack: Encyclopedia

Miscellaneous (1 matching dictionary)

8. top whack: Idioms

Slang (2 matching dictionaries)

9. top whack, top whack: Green’s Dictionary of Slang
10. top whack: English slang and colloquialisms used in the United Kingdom

Definitions from Wiktionary (top whack) ▸ noun:  (slang, UK) The highest possible price or payment. ▸ Words similar to top whack ▸ Usage examples for top whack ▸ Idioms related to top whack ▸ Wikipedia articles (New!) ▸ Words that often appear near top whack ▸ Rhymes of top whack ▸ Invented words related to top whack