A long time ago I was at a German class and we where discussing "hard to translate words" and our teacher said there was one verb in German that stand for the action when people (usually in an Oktoberfest and after a few beers) raise their glasses and start to swing them sideways while singing out loud. She said this verb was schwiden or schwindel or schwindeln (I’m not sure which one). I searched for the 3 words but I could not verify any of them is the one I’m looking for.
As I don’t have any more contact with my former teacher, and never been to an Oktoberfest in Germany, can anyone please tell me if is there a verb used in the situation I described above?