interdrink
/ˌɪntərˈdrɪŋk/Definitions
1. verb
to drink with or as others, typically in a social setting
“At the party, everyone was interdrinking champagne and cheering for the bride and groom.”
2. noun
the act of drinking with others, especially in a festive or celebratory atmosphere
“The interdrink at the wedding reception was filled with laughter and joy.”