We found 2 dictionaries that define the word in the head:

General (1 matching dictionary)

1. in the head: Rhymezone

Slang (1 matching dictionary)

2. In the head: Urban Dictionary

Definitions from WordNet (in the head) ▸ adverb:  with respect to the mind Types: crazy, insane, deranged, unbalanced, mental, psychotic, lunatic, more... Phrases: had eyes in the back of head, has eyes in the back of head, have eyes in the back of head, having eyes in the back of head, soft in the head, more... ▸ Words similar to in the head ▸ Usage examples for in the head ▸ Idioms related to in the head ▸ Wikipedia articles (New!) ▸ Words that often appear near in the head ▸ Rhymes of in the head ▸ Invented words related to in the head