[aruaru](exp) (poss. from あるある大事典 (TV show)) Oh yeah; Of course it is so; Cheer up, that's average; It happens; It's possible; Don't worry, it happens[Add to Longdo]
[mu](int) (1) (arch) unh (sound of physical exertion); oof; (2) wow; whoa; (3) (See うむ) yes; yeah; uh-huh; (aux-v) (4) (after a -nai stem) probably; (5) will; intend to; (6) would like to have done (for me)[Add to Longdo]