インスタントメッセージングでしょう
insutantomessējingudeshō
1. Probably instant messaging.
Noun
1. Probably instant messaging.
1. instant
1. it seems; I think
2. right?; don't you agree?
1. instant coffee
1. instant ramen
1. instant messenger
1. instant foods
1. instant camera
1. instant message; IM
1. instant messenger; instant messaging client