What is the meaning of Imo?

Alternative form of IMO.

you

belly

wish, desire

appetite

you (2nd person singular preposed ergative form)

yours

one's genitalia

your

located in the lowest or innermost part

low, deep

of a low social status

inappropriate, vulgar, uncouth

bottom; base

Rōmaji transcription of いも

Alternative form of immō

dative/ablative masculine/neuter singular of īmus

dative/ablative singular of īmum (bottom, base)

first-person plural future indicative of ir

Source: wiktionary.org