Function: transitive verb
Etymology: soup (drug injected into a racehorse to improve its performance)
Date: circa 1933
: to increase the power or efficiency of < soup up an engine>
Function: transitive verb
Etymology: soup (drug injected into a racehorse to improve its performance)
Date: circa 1933
: to increase the power or efficiency of < soup up an engine>
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012