We found one dictionary that defines the word the horizontal monster mash:

Slang (1 matching dictionary)

1. the horizontal monster mash: Urban Dictionary

▸ Words similar to the horizontal monster mash ▸ Usage examples for the horizontal monster mash ▸ Idioms related to the horizontal monster mash ▸ Wikipedia articles (New!) ▸ Words that often appear near the horizontal monster mash ▸ Rhymes of the horizontal monster mash ▸ Invented words related to the horizontal monster mash