twinny

English

Etymology

twin +‎ -y

Adjective

twinny (comparative more twinny, superlative most twinny)

1. (informal) Resembling or characteristic of twins.

   Synonym: twinnish

   • 2009, Abigail Pogrebin, One and the Same, page 220:

     The Lord parents didn't do cutesy, twinny things with the boys, but Tim admits, “They did some stuff that was a little icky.”
     Like what?
     “We had to perform a song together at one of their cocktail parties.”