tee-hee

 
Pronunciation: /tiːˈhiː/

noun

  • a giggle or titter, especially a derisive one: [as exclamation]: They won’t mind what I get up to. Tee-hee!

verb (tee-hees, tee-heeing, tee-heed)

[no object]
  • titter or giggle, especially derisively: she tee-heed and swatted him with her fan they were tee-heeing over the presents you’d bought

Origin:

Middle English (as a verb): imitative