squirt gunnnoun: Refers to person, place, thing, quality, etc.
(toy: water pistol)
玩具喷水枪 wán jù pēn shuǐ qiāng
喷水器 pēn shuǐ qì
喷洒器 pēn sǎ qì
Children love playing with squirt guns in the summer to stay cool. I shoot the rabbits in my garden with a squirt gun to keep them away from the vegetables.