Noun gismo has 2 senses
- dohickey, dojigger, doodad, doohickey, gimmick, hickey, gizmo, gismo, gubbins, thingamabob, thingumabob, thingmabob, thingamajig, thingumajig, thingmajig, thingummy - something whose name is either forgotten or not known
--1 is a kind of whatchamacallit, stuff, whatsis, sundry, sundries
- appliance, contraption, contrivance, convenience, gadget, gizmo, gismo, widget - a device that is very useful for a particular job
--2 is a kind of device
--2 has particulars: gadgetry; gimbals; injector; mod con
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