14493439.map.less

@import "for"; // see https://github.com/seven-phases-max/less.curious/blob/master/src/for.less

.map(@property, @class-value-list...) {
    .for(@class-value-list); .-each(@value) {
         @class: extract(@value, 1);
        .@{class} {@{property}: extract(@value, 2)}
    }
}

// usage:

.map(background-position;
    class-1, 100px  50px;
    class-2, 200px 150px;
    class-3, 300px 250px);

.map(color; foo red, bar green, baz blue);