Meaning of UPPER in English

UPPER

n.

Function: noun

Etymology: up + 2 -er

Date: circa 1968

1 : a stimulant drug especially : AMPHETAMINE

2 : something that induces a state of good feeling or exhilaration

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.