People pulling one of the parade floats at Gion Matsuri back in 2010. Photo by Travis.

There sure are a ton of “expressions that appear to be a common part of everyday Japanese life but are not usually taught in Japanese language classes. At least not the ones I took.” Yoisho! is presumably, for most of us, one of them, and the Japan Times has a fun little article about its meaning and use, and its amusing, or curious, absence from formal databases and the like.

What other phrases or expressions have you heard used regularly in Japanese, that were never taught in class?