IPA: //ˈsaɪdˌsplɪtɪŋ//
KK: /ˈsaɪdˌsplɪtɪŋ/
Causing a lot of laughter; very funny.
The comedian's sidesplitting jokes had everyone in the audience laughing.
**Sidesplitting** → It is formed from "side" (from Old English *side*, meaning the lateral part of something) and "splitting" (from the verb "split", meaning to divide or break apart). The word "sidesplitting" refers to something that causes extreme laughter, as if it could metaphorically split one's sides from laughing so hard.
Imagine laughing so hard that it feels like your 'sides' are 'splitting' — that's how you remember that 'sidesplitting' means extremely funny.