The old folks here love jenever.
The youngters want a Headbutt (alcoholic drink)\
A kopstoot is a beer with a young jenever ( shot ) next to it, so in separate glasses.
The name already indicates that this combination can hit hard. It is mainly drunk in Dutch and to a lesser extent in Belgian pubs. Often the young jenever is knocked back in one go. Due to the relatively high alcohol percentage of the jenever this can give a burning sensation in the throat, which can then be extinguished with the pilsner.