We found 4 dictionaries that define the word what the heck:

General (3 matching dictionaries)

1. what the heck: Longman Dictionary of Contemporary English
2. what the heck: Cambridge Advanced Learner's Dictionary
3. what the heck: Wiktionary

Miscellaneous (1 matching dictionary)

4. What the heck: Idioms

▸ Words similar to what the heck ▸ Usage examples for what the heck ▸ Idioms related to what the heck ▸ Wikipedia articles (New!) ▸ Words that often appear near what the heck ▸ Rhymes of what the heck ▸ Invented words related to what the heck