I must say i also never heard of it before - but here it is :
In the Netherlands, bundling was referred to as "queesting"--literally, "searching." One observer of local Dutch lovers described how after a girl went to bed, her lover was permitted to sit beside her on top of the bedsheets.
So, perhaps this should not be the first thing out of my mouth when I meet a pretty girl in Amsterdam? I should backtrack and learn something like, "Where is a nice restaurant?"?