We found one dictionary that defines the word relationship killer:

Art (1 matching dictionary)

1. Relationship Killer: Seinfeld Dictionary

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