[mashou ; masho (ik); mahyo (ik)] (exp) (1) (pol) (ましょ is a colloquialism in standard Japanese; まひょ is a colloquialism in Kansai dialect) (See ます) (used to express the speaker's volition) I'll; (2) (used to make an invitation, request, etc.) let's; (3) (See でしょう) (used to express a conjecture) probably
[うおこころあればみずこころあり, uokokoroarebamizukokoroari] (exp) (id) (See 魚心あれば水心) if you do a favor for somebody, you will get a return favor; if a fish is friendly toward water, water will be kind to the fish too; you scratch my back and I'll scratch yours
[あきなすはよめにくわすな, akinasuhayomenikuwasuna] (exp) (id) don't feed autumn eggplant to your wife (because they're too delicious, because they'll give her the chills, or because their lack of seeds will reduce her fertility)
[ばちがあたる, bachigaataru] (exp, v5r) (1) (uk) to incur divine punishment; to pay for one's sins; (int) (2) You'll pay for that!; What goes around, comes around