be up the duff

(redirected from am up the duff)

be up the duff

slang To be pregnant. You two have only been married for a couple of months, I can't believe you're up the duff already!
See also: duff, up

be up the duff

  (British & Australian informal)
to be pregnant Oh, don't tell me Kylie's up the duff again!
See also: duff, up