We found 4 dictionaries that define the word half gallon:

General (3 matching dictionaries)

1. half-gallon: Wordnik
2. half-gallon: Infoplease Dictionary
3. half-gallon, half gallon: Dictionary.com

Slang (1 matching dictionary)

4. half gallon: Urban Dictionary

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