Assertion: boo | /r/ObjectUse | used as slang
Facets:
value: in the 20th century
type: TEMPORAL
Source sentences:
text: In the 20th century, boo has been used as slang for a range of things, including marijuana, snot, idiot, and excellent, and is part of other exclamations such as boo-hoo (mocking crying) and booyah (a celebratory cheer).