[うぐいすばり, uguisubari](n) nightingale (flooring); method of laying floors to deliberately make a noise (like a nightingale's call) when walked across (security feature)[Add to Longdo]
[ポイすて(ポイ捨て);ぽいすて(ぽい捨て), poi sute ( poi sute ); poisute ( poi sute )](n) littering, esp. such things as empty cans, cigarette butts, dog faeces, etc. along roads, in parks, etc.; careless tossing away[Add to Longdo]