What is the meaning of Debu?

a traditional coming-of-age party which celebrates a young woman's eighteenth birthday

the number eighteen

ash (solid remains of a fire)

dust (fine, dry particles)

silt: a particle from 3.9 to 62.5 microns in diameter, following the Wentworth scale.

Rōmaji transcription of でぶ

Rōmaji transcription of デブ

dust (fine, dry air particles)

ash (solid remains of a fire)

I (personal pronoun)

me (direct object of a verb)

me (object of a preposition)

me (indirect object of a verb)

my (belonging to me)

Source: wiktionary.org