noun, noun or participle which takes 'suru', intransitive verb
secretly exchanging email addresses
Slang blend of こっそり (secretly) and アドレス (email address). Used for the act of discreetly swapping contact info, often in social or dating contexts.
See also: こっそり
合コンでこそアドした。
We secretly exchanged email addresses at the group date.
If you're going to swap emails on the sly, make sure no one around notices.