The term 'TEE-HEE RELATIVE' is a crossword solution that consists of two words: 'TEE-HEE' and 'RELATIVE'. The first word, 'TEE-HEE', is a four-letter word meaning 'haha'. It is an expression of amusement or laughter, often used in response to something funny. The second word, 'RELATIVE', is a seven-letter word meaning 'related by blood or marriage'. Together, the two words form a phrase that describes a person who is related to someone who is known for being humorous.