noun, する verb
A dry cup of liquid is one that's worth cheering to. This is the Japanese way to say "cheers!" or "toast" or whatever else you say before drinking something.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
Alright, cheers cheers! Hey, bottoms up!