Variant of titty. Attested from the late eighteenth century.
Meanings
(UK, informal) Very small, tiny.
There's a pear orchard, and a knot garden, and a diddy little lake that's just big enough to swim in . . . hey, if the weather stays like this, we can have a dip tomorrow. 2013, Angela Woolfe, The Surprising Life of Charlie Glass (size 18 and a Bit), →ISBN, page 380:
Me mither mend't me auld breeks, / But ay! but they were diddy; 1894, R. Brimley Johnson, editor, Popular British Ballads Ancient and Modern, “Robbie Tamson’s Smiddie”:
Variant of titty. Attested from the late eighteenth century.
Meanings
(slang) A woman's breast.
It’s what they call a roany bush. Well, it’s green now, but in a month’s time it’ll be as red as a fox’s diddy, and you wouldn’t know it for berries growing all over it. 1911, Joseph Campbell, Mearing Stones:
They always have a big belly or a new babby hidden inside the shawl suckin on her diddy. 2015, Martha Long, Run, Lily, Run, →ISBN, page 155:
(Ireland, UK, informal) A fool, a tit.
Hell, I almost regret editing out my original miss-spelling of the word 'literacy', since your sense of humour seems to be in need of some assistance, and that would have been a classic, one-off opportunity not only to make me look a right diddy, but to finally prove that Americans do understand irony. 2004 September 9, Iain McFadzen, “Remake of Taxi pissing me off”, in CGTalk, archived from the original on 14 Sep 2015:
Last month a diddy told my fortune. 2011, Mary Ellen Dennis, The Greatest Love on Earth, →ISBN, page 90:
To the typical genre reader a diddy would be, to borrow a term from John Dickson Carr, below suspicion. 2012, Curtis Evans, Masters of the "Humdrum" Mystery, →ISBN:
Real Gypsies despise them and call them ' diddikais — dirty diddies,' and half the sins laid at their door have been committed by these diddikais. 1943, Journal of the Gypsy Lore Society, page 82: