A new synonym of the word 'awesome'. When autocorrect corrects awesome into speedometer and you just give up on life and use it instead. It's origin is that once a girl was struggling to text and the autocorrect decided to strike.
A Kamegaki Speedometer Zoom-in refers to a zoom-in effect with an integrated Speedometer, itself popularised by director Hajime Kamegaki, himself a student of Yoshinori Kanada.