しゃわーがいる。(sha-waa ga i-ru). Kinda sounds phonetically as "shawahh gah ear-roo." Means: (Unstated Subject is) Needing a shower. Usually "shower" is written in Katakana as it is a foreign loanword: シャワーがいる。 Sha-waa ga i-ru. I need a shower. Alternatively, one can say シャワーが必要だ。（しゃわあがひつようだ。）[sha-waa ga hi-tsu-yohh-da] "(Regarding unstated subject,) Shower is necessary."