excess flesh; flab; surplus fat
Refers to unwanted body fat, often with a negative or self-deprecating nuance. Commonly used in contexts of dieting or body shape.
I've put on flab around my belly from lack of exercise.
She goes to the gym to lose excess fat.
Mixed kana-kanji spelling; common when the first kanji is considered difficult.
Search-only katakana form; not a standard written spelling.
贅 (zei, 'luxury' or 'waste') + 肉 (niku, 'flesh'). The kanji 贅 suggests something superfluous or unnecessary, giving the sense of 'waste flesh'.