solo yakiniku; going to a yakiniku restaurant alone
Refers to the act of eating yakiniku (grilled meat) by oneself at a restaurant, often seen as a bold or solitary activity.
See also: 焼き肉
I enjoyed solo yakiniku on the weekend.
Eating yakiniku alone is surprisingly relaxing.
焼肉 is the general term for grilled meat or yakiniku cuisine, while 一人焼肉 specifically means doing it alone.
Compound of 一人 (ひとり, 'one person, alone') and 焼肉 (やきにく, 'yakiniku, grilled meat').