Slang to replace a complicated or unknown word or phrase. Similar to whatchamacallit.
When do you finish that thingamajiggy at work?
by badassreporter November 03, 2008
A word used for taking the place of the name of an object, when you aren't sure in what way you should say it.
Something went wrong with the thing-a-ma-jiggy during an experiment in science class.
by ebonyanddomino July 05, 2009