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45 entries under slang topic. ×

3
psycho(noun, sick, mad person)
1
basket case(noun, sick, mad person)
1
coo-coo(noun, sick, mad person)
1
crack-brain(noun, sick, mad person)
1
crack-skull(noun, sick, mad person)
1
cuckoo(noun, sick, mad person)
1
flake(noun, sick, mad person)
1
fruit-cake(noun, sick, mad person)
1
goof(noun, sick, mad person)
1
jerk(noun, sick, mad person)
1
jerk-off(noun, sick, mad person)
1
knee-jerk(noun, sick, mad person)
1
kook(noun, sick, mad person)
1
loom(noun, sick, mad person)
1
loon(noun, sick, mad person)
1
loony(noun, sick, mad person)
1
loony tune(noun, sick, mad person)
1
luny(noun, sick, mad person)
1
mental(noun, sick, mad person)
1
mishoogeh(noun, sick, mad person)
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APASmart Define. (1970). goo-goo thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/goo-goo/thesaurus/synonyms
ChicagoSmart Define. 1970. "goo-goo thesaurus" https://smartdefine.org/goo-goo/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 1970, goo-goo thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/goo-goo/thesaurus/synonyms>.
MLASmart Define. "goo-goo thesaurus" 1 January 1970. Web. 1 October 2026. <https://smartdefine.org/goo-goo/thesaurus/synonyms>