A "mash note" is a sweet, affectionate, or romantic message or letter typically sent to someone to express your feelings of love or admiration for them. Full definition
★ «Selections From the Private Collection of Robert Rauschenberg» (through Dec. 23) A kind of mash note to the art world, this selection of 130 items attests both to the relationships and the congeries of artworks, objects and memorabilia often accumulated by artists, especially important, instinctively generous ones. (nytimes.com)
The Tories were soon swamped with mash notes about how great life was under the NDP. (thestar.com)
Denis Villeneuve's sci - fi sequel and Guillermo del Toro's monster mash note — one set three decades in our future, the other five in the past, both achingly, overwhelmingly gorgeous — make the case. (dailynews.com)