Sport, hobby, nuisance, childish and immature, downright hilarious, call it what you will.
Airbumming at its base level involves creeping up behind a colleague and - well, the title speaks for itself.
First developed as a sport in Afghanistan by Lynx and Apache technicians from JHF(A), several of the original cast from 9 Regiment Army Air Corps Workshop REME further developed the game and have so far spawned 2 sequels, both filmed on Exercise GRAND PRIX in Kenya.
Airbumming - The Montage
The sport, although in its infancy is slowly gathering momentum.
Airbumming - The Future
The race is now on for someone to airbum a celebrity, a member of Royalty or a member of HM Government.
An associated sport is zwaffelling
AirBumming V Zwaffeling - The Battle for Hearts, Minds and Sponsorship
Airbumming is far more acceptable to the public audience, sanctioned by youtube, and actually achievable on a day-to-day basis. Unlike your zwaffellers, whos undocumented tales of cock slapping verge on the realms of the Walt. Fugly
Zwaffling has actually been the subject of a court case, so is a matter of public record, whereas airbumming is just for people whose manhood is too small to effect a proper zwaffle. <Stoatman>