It's intended to mimic the specific style of speech that's used when pulling an object out of Doraemon's pocket. Since it's exclusively an audio effect, it's hard to emulate through text alone.
biteTaiyakiShe's not coming at allll!Taiyakichew chewRecently... Azu-nyan hasn't been showing up...She might not show up anymore...Alright, come on!Okay! This is one thingyou can leave to me!Ta-da!If she showed up just with this then there'd be no trouble...Fishing set! Spoken in the style of Doraemon.She came!!5 minutes later.