What does thingamajig mean?
Thingamajig is an informal English noun used for something whose name is unknown, unimportant, or momentarily forgotten. It often refers to a particular object, tool, device, or component, especially in a situation where naming it would add no useful detail: “Pass me that thingamajig near the top shelf.” The word can also stand for an unspecified activity, arrangement, or affair, as in “the whole thingamajig.” Its extended, jocular sound makes it suitable for conversation and informal writing but generally unsuitable for formal communication, where “thing,” “device,” “object,” or a precise name is preferable. Thingamajig developed as a playful alteration of the older placeholder thingummy and belongs to a group of jokey English formations built on thing. Although its meaning is broad, it is not simply a formal synonym for thing: the coined, rhythmic form adds a tone of vagueness, familiarity, and often mild impatience or amusement. It is therefore especially useful when the identity of something is genuinely unimportant or the speaker cannot recall its name.
nounAn unnamed or unspecified object, device, component, or other thing whose name is unknown, forgotten, or considered unimportant. By extension, it can refer to an unspecified activity, arrangement, or affair.
- An unnamed or unspecified object, tool, component, device, or mechanism.
- An unspecified activity, arrangement, or affair, especially when the details are treated collectively or dismissively.
"Could you pass me that thingamajig you used to tighten the lid?"
"Pass me that thingamajig near the top shelf."
"The children enjoyed the whole thingamajig of dressing up and stomping around the house."
The regular plural is rarely needed because the word usually refers to one unspecified thing; it may be used when several unnamed objects are meant.
"The box was full of little thingamajigs that nobody could identify."
Thingamajig is “thing” in a playful disguise—an English placeholder for something whose name you cannot be bothered to recall.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does thingamajig come from?
Thingamajig is an English coined placeholder formed by altering thingummy, which is itself built on the ordinary word thing. Its development was playful rather than a regular compounding from a separately named source. It belongs to a family of English coinages, including thingamabob, that use thing as a generic label for something unnamed.
How thingamajig is actually used
Informal and often deliberately jocular. Its extended sound conveys vagueness and familiarity, and it can suggest mild impatience, amusement, or dismissal. It is less appropriate in formal writing than a precise name or a neutral word such as “thing,” “object,” or “device.”
Easily confused with thingamajig
Both can stand for an unnamed thing; thingummy is the simpler, older placeholder, whereas thingamajig has a more elaborate, rhythmically emphatic form and is often used for a particular object or mechanism.