Definition of hat tip in English:

hat tip

noun

  • (in online contexts) used as an acknowledgement that someone has brought a piece of information to the writer's attention, or provided the inspiration for a piece of writing.

    ‘hat tip to Chris Johnson, who alerted me to the story’
    • ‘There is a press release available at WHOI which is quite informative (hat tip to Joseph O'Sullivan for the link).’
    • ‘She begins with a hat tip toward fellow-NYT journalist John Schwartz, who she claims "made the trend official."’
    • ‘If someone posts a link to an article or news item and you see it and post it on your blog - give them a hat tip.’
    • ‘Hat tip to Liz Ditz for pointing out my grammatical error in the title.’
    • ‘Hat tip: Susan Crawford, who was there and offers a few thoughts of her own.’
    • ‘Here's the video of the segment, courtesy of the Political Teen (hat tip: Ian).’
    • ‘Hat tip to the anonymous person who suggested I send it in!’
    • ‘I missed this story when it originally came out a few days ago, so hat tip to Jeff Norris for bringing it to my attention.’
    • ‘Hat tip: Aaron, who pointed out the article at his own page, just as I was thinking "now what shall I write about today?"’
    • ‘The hat tip goes to Susan for letting me know.’
    • ‘(Hat tip to various commenters who alerted me to the numbers here.)’
    • ‘Great post (hat tip Eric at Off-Wing) on Uber-gamers at ESPN including info about a guy who designs the robot positioning systems for Mars Rover landers.’
    • ‘Thanks to Knickerblogger for the hat tip, and my apologies for being a few days late.’
    • ‘This time the hat tip goes to Instapundit.’
    • ‘(I'd post a hat tip, if only I could remember how I got there...)’
    • ‘Hat tip to Mark!’
    • ‘I read this article by Steven Paulikas of "Newsweek" in hard copy yesterday but Dan Foty has beat me to finding a link (so, a hat tip).’
    • ‘Hat tip to the Opinionjournal.com's "Best of The Web Today."’
    • ‘Hat tip: U of C Faculty Blog.’
    • ‘No attribution, no thank you, no hat tip, no kiss on the cheek was provided.’
    thanks, gratitude, appreciation, praise, commendation, credit, recognition, regard, respect
    View synonyms

Origin

Late 19th century (originally denoting an act of raising one's hat as a polite greeting or salutation): from the phrase tip one's hat.