duff(redirected from duffing)
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up the duff
Pregnant. Primarily heard in UK, Ireland. You two have only been married for a couple of months, I can't believe you're up the duff already! I was pretty wild during my university years, which is how I found myself up the duff at 22.
be up the duff(British & Australian informal)
to be pregnant Oh, don't tell me Kylie's up the duff again!
n. the buttocks. Don’t you get tired of sitting around on your duff?