IPA: /ˈtɪk.lɪʃ.li/
KK: /ˈtɪk.lɪʃ.li/
In a way that causes laughter or discomfort due to being touched lightly.
She laughed ticklishly when her friend poked her sides.
Ticklishly → It is formed from "ticklish" (from Middle English *ticklish*, meaning sensitive to being tickled) and the suffix "-ly" (meaning in a manner of). The word "ticklishly" means in a manner that is sensitive to being tickled.
Think of being sensitive to touch, as in 'ticklish', and remember that 'ticklishly' describes how someone reacts in that sensitive manner.