v. t. [ imp. & p. p. Giggled p. pr. & vb. n. Giggling ] [ Akin to gaggle: cf. OD. ghichelen, G. kichern. ] To laugh with short catches of the breath or voice; to laugh in a light, affected, or silly manner; to titter with childish levity. [ 1913 Webster ]

Giggling and laughing with all their might
At the piteous hap of the fairy wight. J. R. Drake. [ 1913 Webster ]

n. A kind of laugh, with short catches of the voice or breath; a light, silly laugh. [ 1913 Webster ]

n. One who giggles or titters. [ 1913 Webster ]

a. Prone to giggling. Carlyle. [ 1913 Webster ]