noun
tonsil stone; tonsillolith
Colloquial term for the small, foul-smelling lumps that form in the tonsils.
See also: 膿栓
喉の奥から臭い玉が出てきた。
A tonsil stone came out from the back of my throat.
noun
scent ball
Only when written 匂い玉 / 匂玉
A small ball infused with fragrance, used for aromatherapy or as a sachet.
クローゼットに匂い玉を入れておくと、服がいい香りになる。
If you put a scent ball in the closet, your clothes will smell nice.
Medical term for tonsil stone; 臭い玉 is the colloquial equivalent.
Compound of 臭い (におい, 'smell') or 匂い (におい, 'fragrance') and 玉 (たま, 'ball'). The reading くさいだま is a variant using the kun'yomi of 臭い.