Your first example reminds me of the It’s Always Sunny in Philadelphia theme music, which is in the same style. The second example, with its heavy reliance on pizzicato, reminds me of Strauss’s Pizzicato Polka. The Strausses wrote light classical music that isn’t that far removed, it seems to me, from the kind of music you’re talking about here.
I’ve been a radio Production Director for almost 40 years. On the earliest records of production music from the 50’s (the earliest I believe were sold to stations from Capitol) that style was often referred to as “Meringue.”