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Look up boo hoo in Wiktionary, the free dictionary.
Boo hoo may refer to the sound of someone crying.
Boo hoo may also refer to:
- Boo Hoo, a 2002 album by musician Voltaire
- "Boo-Hoo", a 1937 hit song recorded by Guy Lombardo and His Royal Canadians
- Boo Hoo the Bear, the mascot of Queen's University, Kingston, Ontario, Canada
- Boohoo the Clown, a Machine Empire monster from the Power Rangers television series
- Boohoo.com, a UK online fashion retailer
- A priest of the Original Kleptonian Neo-American Church