sure as eggs
advEtymology A shortened form of sure as eggs is eggs.
1
Colloquial surely; doubtlessly
- "Pity for you though, all the same, you could have tried your luck there — she'll open her legs for grammar-school boys, sure as eggs." "But if she's not much to look at anyway," I said […]1991, Knut Faldbakken, Insect summer: