Definition of paste egg in English:

paste egg

Pronunciation /ˈpeɪst ɛɡ/

noun

(also peeast egg)
dialect, historical British

Origin

Early 17th century; earliest use found in Randle Cotgrave (fl. 1587–?1630), lexicographer. Probably either from pasch + egg, or a variant of pace egg with excrescent medial -t-.