Meaning:
Its source is an English expression meaning "Mack's field."
Narrative:
The Old English personal name Mack (probably a translation of the Latin magnus, meaning ''great'') figured in the formation of at least one other surname that has been used as a personal name, Maxwell.
Associations:
In African-American slang, ''max'' can refer either to a maximum-security prison or to the maximum possible sentence for a crime.
''Maxed out'' is a slang term indicating that something has reached its highest potential and can go no further.
''Grody to the max'' means extremely repulsive.