We found one dictionary that defines the word bunching up:

General (1 matching dictionary)

1. bunching up: Vocabulary.com

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