We found one dictionary that defines the word not have the foggiest notion:

Miscellaneous (1 matching dictionary)

1. not have the foggiest notion: Idioms

▸ Words similar to not have the foggiest notion ▸ Usage examples for not have the foggiest notion ▸ Idioms related to not have the foggiest notion ▸ Wikipedia articles (New!) ▸ Words that often appear near not have the foggiest notion ▸ Rhymes of not have the foggiest notion ▸ Invented words related to not have the foggiest notion