Waffle

むだ口

mudaguchi

((often lengthy) speech or writing that is evasive or vague, or pretentious)

ワッフル

waffuru

(flat pastry pressed with a grid pattern)

ごちゃごちゃ言う

gochagocha iu

(to speak or write (something) at length without any clear aim or point — see also ramble)