This is an important word and nobody has it right yet. What it means is: Trying too hard, unsubtle, and inauthentic.
Specifically that which is unsubtle or inauthentic in its way of trying to elicit a certain response from a viewer, listener, audience, etc. Celine Dion is cheesy because her lyrics, timbre, key changes, and swelling orchestral accompaniment telegraph 'i want you to be moved' instead of moving you. Gold chains on an exposed hairy chest are cheesy because they shout out: "I have money and I am manly" instead of impressing a woman in a more subtle way, or allowing a woman to form her own judgments. The excessive showing off suggests he's compensating for what he does not have--i.e., he's actually poor, insecure, or short with an inferiority complex. Cliches are often cheesy because they are an obvious and artless way of making a point. A movie might be cheesy if it contains 'on the nose' dialogue, like "I can't live without you" or "You had me at hello."
Cheesiness is subjective. What seems cheesy to me, may be a legitimate and attractive hairstyle to you. What seems cheesy to me, may cause you to weep and hug your girlfriend tight.
by redhen February 7, 2007
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Things done or said to someone which may make someone feel special or loved while others who see or hear these would be like: "eeww go get a room"

Things done or said that would make other parties feel the goosebumps
John: You are the love of my dear life
Jacki : Awwww, stop that! you are so cheesy sometimes!

Lauren (bystander) just feeling the chills and thinking "EWW GO GET A ROOM"
Robert (bystander) also feeling the chills and thinking "yup they need a room"
by kakashisensaiz February 18, 2016
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Low quality, cheap, inauthentic, crappy; fake. From cheese cloth, the thin cheap fabric used to drain cheese curd, and in the past sometimes used instead for proper cloth in cheap clothing.
(While feeling the fabric of a shirt on the rack) "This one feels a little cheesy." Hence any low-grade or fake product, tangible or not, offered to the public.
by TedC January 17, 2013
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1. Something that is unintentionally kitschy, tacky, or of poor quality, but these flaws go unnoticed by the admirers of said thing.

2. Something that was popular at some point in the past, but that now seems lame in retrospect.
1. I can't believe you like Ashlee Simpson. Her music is so cheesy.

2. Hey, look at this picture of dad from 1975! Check out those sideburns and bellbottoms! That's so cheesy!
by bstokes June 13, 2006
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1) Any form of entertainment (music, movies) or aesthetic (hair style, photo pose) that the status quo has deemed fully open to ridicule, usually with no explanation. More specifically, the status quo here being that of Generation X. "tacky" and "dated" are closely related words, but far from being exact synonyms.

2) Anything the speaker doesn't like, which makes it an immensely vague adjective

3) A term embraced by young self-proclaimed non-conformists, to hypocritically distinguish what they've been taught to dislike from what they've been taught to like
"Family Ties? That show was so cheesy!"

"Ha ha ha...Cameron just bought these used hair metal CDs he found in the store. The CDs are so cheesy! In fact, we hated them so much, that we kept listening to them last night and singing along until 4 in the morning."
by Bill M. July 24, 2004
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