Green’s Dictionary of Slang

crowd surf v.

to leap from the stage at a rock concert, in order to be caught and passed along by the crowd; thus crowd-surfing n.

Globe & Mail (Toronto) 20 Nov. C7: (Factiva) ‘The music is a barrage of stampeding time trials inspiring live audiences to excesses of stage-diving and crowd-surfing.’ – promotional literature for Napalm Death, makers of Scum, ‘one of the bestselling thrash LP’s of all time.’.
Ottawa Citizen 24 July E1 : (Nexis) The guitar-driven groove-rock combined with the wild girating and head-bobbing of singer/lyricist Gord Downie makes crowds unruly – fans pump their fists in the air, crowd surf, throw things like underwear and cigarettes or climb up on stage and dive off.
TinthePark 🌐 Crowd surfing involves fans being carried across the crowd towards the stage and can be harmful not only to those taking part in the activity but also those who are on the ground. [...] Several music festivals in continental Europe have successfully imposed similar initiatives after acknowledging that most people find crowd surfing both irritating and worrying.