We found one dictionary that defines the word if its the last thing someone ever does:

General (1 matching dictionary)

1. if it's the last thing someone ever does: Merriam-Webster

▸ Words similar to if its the last thing someone ever does ▸ Usage examples for if its the last thing someone ever does ▸ Idioms related to if its the last thing someone ever does ▸ Wikipedia articles (New!) ▸ Words that often appear near if its the last thing someone ever does ▸ Rhymes of if its the last thing someone ever does ▸ Invented words related to if its the last thing someone ever does