also: ハモニカ
He is good at playing the harmonica.
Slang, vulgar; derived from the resemblance of the motion to playing a harmonica.
That word is slang; ハーモニカ refers to the act of licking female genitals.
hypodermic syringe
Slang; possibly from the visual similarity of a syringe to a small harmonica.
In slang, ハーモニカ can also mean a syringe.
There was someone playing the harmonica in the park.