If you are the yupper, by yupping someone, you are not bound in any sense by your agreement, since you didn't hear what it was you were agreeing to. If you are later asked to perform the task, you then have the option to admit that you had yupped the person and ignore the task, or pretend that you had really listened & just go along with the yuppee.
If you are the yuppee, and you recognize that you are being yupped, you can call the yupper's actions & state "you're yupping me" or "I'm being yupped", whereupon the yupper may admit the yupping action and feel mild embarrassment, but there will be no permanent damage.
yupping, being yupped, yupper, yuppee are all derived from the root 'yup'
Man (watching tv): yup
Woman: so we're going to go back later, are you coming with us?
Man (watching tv): : yup
*2 hours later*
Woman: ok, let's go
Woman: to the mall? you said you'd come with me later?
Man - option 1: oh, I was just yupping you, I'm staying here
Man - option 2: yea that's right, let me grab my coat
It can also be the sound a dog makes trying to yip while its lungs are busting into flames.
Anne: "Did you here a yup?"
Travis: "Yeah, my neighbors got another dog so I'm taking care of it"
Dog: "yup!!! yup!!"
original context is used for purchasing or bidding on a storage locker saying yup to increase your bid , slowly turned into a slander saying for a Hot woman or attractive girl/woman
rule of thumb when using word ( if you yell an she sees you you have to point her out )
also converted in to a DRINKING GAME CALLED " YUP IN YOUR CUP"
rules: turn on storage wars or any bidding tv show or movie for ever YUP ,YEEP ,or Yep said your and your party take a drink repeat till drunk!