teeter totter

teeter - totter ( n ) ( tiːt̮ər tɑːt̮ər ) ( also see - saw ) =a piece of equipment for children to play on consisting of a long, flat piece of wood that is supported in the middle.

بدون فوت وقت - خیلی زود - بدون ذره ای تردید -

الا کلنگ