屁と火事はもとから騒ぐ[hetokajihamotokarasawagu] it is often the originator of problems who kicks up a fuss or complains loudest
屁をひって尻窄め[hewohitteshiritsubome] there's no point squeezing your buttocks after you have farted
屁理屈[herikutsu] sophism
放屁[houhi] breaking wind
言出しっ屁[iidashippe] first person to say something

河童の屁[kappanohe] a cinch
屁放き虫[hekokimushi] fart bug
屁こき[hekoki] farting
屁っぴり腰[heppirigoshi] bent back

っ放し[] keep ...-ing (negative nuance, with the state being improper, unpleasant, etc.)
テレビ放送[terebihousou] telecast
引き放つ[hikihanatsu] to pull apart
飲み放題[nomihoudai] all you can drink
衛星放送[eiseihousou] satellite broadcasting

下放[kahou] (stock market) slump
下放れ[shitabanare] (stock market) slump
仮釈放[karishakuhou] release on parole
火焔放射器[kaenhoushaki] flamethrower
解放[kaihou] release

ランブル鞭毛虫[ranburubenmouchuu] giardia (flagellate protozoan)
ランブル鞭毛虫症[ranburubenmouchuushou] giardiasis
いも虫[imomushi] hornworm (caterpillar of a hawk moth)
益虫[ekichuu] useful insect
円虫類[enchuurui] round worms

夏虫[natsumushi] summer insect
蛔虫[kaichuu] roundworm (Ascaris lumbricoides)
害虫[gaichuu] harmful insect
鈎虫[kouchuu] hookworm
寄生虫[kiseichuu] parasite

蟲惑[kowaku] fascination

へこき蟲[hekokimushi] fart bug