The ๐ค hand gesture. The thumb, index, and pinkie fingers are held out, while the middle and ring fingers touch the palm of the hand.
Not to be confused with \n/ (๐ค), where the thumb is held down instead of extended out.
In anime, it is well known for being part of the Sailor Moon's famous Tsuki ni kawatte oshioki yo ("I'll punish you") pose, for Ranka Lee's dance move in Macross Frontier while singing the song Seikan Hikou, and for the association with Yazawa Nico's catchphrase, nico nico nii.
In American sign language it's known as the "I Love You" sign, after a combination of the ASL signs for the letters I, L, and Y.
The following tags implicate this tag: double_\m/ (learn more).