We found one dictionary that defines the word fill the gap:

Miscellaneous (1 matching dictionary)

1. fill the gap: Idioms

Phrases: fill in the gap, more... ▸ Words similar to fill the gap ▸ Usage examples for fill the gap ▸ Idioms related to fill the gap ▸ Wikipedia articles (New!) ▸ Words that often appear near fill the gap ▸ Rhymes of fill the gap ▸ Invented words related to fill the gap