The Collaborative International Dictionary of English v.0.48:
Blebby \Bleb"by\, a. Containing blebs, or characterized by blebs; as, blebby glass. Syn: blebbed. [1913 Webster] BleckWordNet (r) 3.0 (2006):
blebby adj 1: covered with small blisters [syn: blebby, blistery] 2: (of glass or quartzite) marred by small bubbles or small particles of foreign material [syn: blebbed, blebby]