dreck
Concise Oxford English Dictionary © 2008 Oxford University Press:
dreck /drɛk/ (also drek)
▶noun informal rubbish.
– derivatives
dreckish adjective,
drecky adjective.
dreckish adjective,
drecky adjective.
– origin 1920s: from Yiddish drek ‘filth, dregs’.
'dreck' also found in these Oxford entries:

