Ilysm means "I love you so much" usually used in text. You can say it to a friend or family member. Usually that is what is meant for.
by Urban..dictionary..posts September 17, 2021
Get the ILYSMmug. means i love you so much frequently used by people those are in relationship. same like ily which means iloveu but this means more sweet hahaha
by alyyssz May 17, 2020
Get the ilysmmug. 
to describe your love for song mingi
by yuwekie December 6, 2022
Get the ilysmmug.