buku-buku
Describes gaining weight or becoming bloated — with a somewhat negative nuance. Implies unhealthy or excessive weight gain.
💡After the holiday season — 'I've gotten buku-buku from all the party food.'
食べすぎてぶくぶく太ってしまった。
I ate too much and got buku-buku fat.
He's been ___ gaining weight since he stopped exercising.
運動をやめてから○○太った。