yo-yo

1. A toy consisting of a spheroidal or cylindrical spindle having a circular groove in which string is wound; it is used by holding the string in the fingers and reeling the spindle up and down by movements of the wrist.

   I bought a yo-yo from the toy store yesterday.

   Jo-Jo, Yo-Yo

   йо-йо́jo-jó, йо́-йоjó-jo

   йо-йо́jo-jó, йо́-йоjó-jo, йойоjojo

   a toy consisting of a spool that is reeled up and down on a string by motions of the hand

2. A volatile market that moves up and down.

3. (informal)Someone who vacillates.

4. A dogfighting maneuver involving the attacker temporarily exchanging altitude for airspeed, or vice versa, in order to rapidly catch up with the defender or to prevent an overshoot.

5. A cloth rosette formed by gathering the outside edge of a circle of fabric in toward the centre using a running stitch.

6. (informal)A foolish, annoying or incompetent person.

   It is hard to watch the management for very long and not conclude that the place is run by a bunch of yo-yos.

regular