Undorsement 

Undorsement is the act of paying someone to NOT endorse you or your brand. The opposite of "endorsement"

Wow, The Situation was offered quite an undorsement by Abercrombie & Fitch

Undorsement by TheCompletelySeriousNewsShow August 23, 2011

undorsement 

When the brand pays a celebrity to ask them not to use their product for fear that it would tarnish the brand.

Opposite of endorsement.

The Situation received an undorsement when Abercrombie & Fitch offered him "a substantial payment" not to wear its clothes after it revealed it was "deeply concerned" that the 29-year-old "could cause significant damage" to the brand's "aspirational nature".

undorsement by Batman Potato August 25, 2011

Undorsement deal

When a lifestyle brand offers a celebrity money not to be associated with their brand or products.

The fashion world was abuzz today with news of a potential undorsement deal between lifestyle brand, Abercrombie & Fitch and Jersey Shore's 'The Situation.' Apparently Abercrombie & Fitch has offered 'The Situation' a "considerable" amount of money not to wear their clothes.

Undorsement deal by Manna81 August 22, 2011

endorsement

Putting your "A.W. yeah" seal of approval on something.

Alani gave her endorsement to door six.

endorsement by trigonominator May 15, 2015

endorsement bombing

On LinkedIn, you can add skills to others profiles by "endorsing them". Endorsing people for nonsensical skills — like "Fashion" for neck-beard computer programmers or "Ice Cream" for just about anyone — leads to hilarity for all.

Oh man, I spent some time endorsement bombing the shit outta Josh the other day. His mom is gonna flip when she see he's recommended for his Bondage skills.

endorsement bombing by killa_dilla May 12, 2014

Reverse Psychology Endorsement 

A type of endorsement (usually done by celebrities) that tricks people into thinking a celebrity is not being paid to promote or endorse a product/company. A celebrity may talk down about a company or a company may even make a publicity stunt to pay the celebrity not to promote their product/company. You think there is no endorsement deal, but in reality, you're being tricked into seeing that product/company's name.

In August 2011, Mike "The Situation" Sorrentino, from MTV's Jersey Shore, was offered a significant sum of money by Abercrombie & Fitch Co. to NOT wear A&F clothes.

Reverse Psychology Endorsement

Reverse Psychology Endorsement by MunroChubbers September 21, 2011

Farrakhan Endorsement 

n. Inability for the person to endorse a person because of an individuals status. Usually they are a controversial figure or diametrically opposed to the candidates views. It also entails picking the lesser of the evils and having an overall disdain for the institution of the government.

Ron Pauls support of Obama. He is a republican so he has to give him a Farrakhan Endorsement. Colin Powell saying he is "undecided" about who he will vote for. Sharpton saying "I realize I will hurt a candidate, so I wont endorse him."

Farrakhan Endorsement by Peter Wilkins May 4, 2008