adjective, flab·bi·er, flab·bi·est.
- hanging loosely or limply, as flesh or muscles; flaccid.
- having such flesh.
- lacking strength or determination.
adjective -bier or -biest
- lacking firmness; loose or yieldingflabby muscles
- having flabby flesh, esp through being overweight
- lacking vitality; weak; ineffectual
1690s, variant of flappy, which is recorded in the sense of “softly fleshy” from 1590s; see flap. Related: Flabbily; flabbiness.