It’s a ubiquitous term in the domain industry.
An Austin man has filed a trademark application (serial 88833592) for “makeOffer” for “Computer services, namely, domain forwarding services.”
Make Offer is, of course, a common term in the domain name industry for unpriced domain names seeking an offer.
Mark Estabrook operates a site at MakeOffer.site. He submitted a screenshot from the site as his specimen. The page reads:
you landed here because the domain name you typed in your browser’s URL was forwarded here. a person or organization owns the name and wants us to broker it for them privately. it can be yours. to begin the process, tell us which name you are interested in and SUBMIT a reasonable offer. as seller’s agent, we will forward your offer and if seller wants to respond we will contact you.
The trademark application cites a first use date of March 8, 2020.
I emailed Estrabrook yesterday to understand his objective in trademarking the term. I have not yet heard back.