Juggernaut Jam Share definition Flag Juggernaut jam is a reference to the on-going debate of who invented the English language; was it the Americans or the English? Out of context: "Juggernaut Jam and Brits are Eggs" Juggernaut Jam by Myx0 December 16, 2005 0 0 Get merch Get the Juggernaut Jam mug. Buy Now — $32.95 See more merch