Tonk is a synonym for the quite frequently used word Fjolnkskebab, and I am quite certain that we all know what Fjolnkskebab means. And if you don't, well, your just a little bit of a gross crusty child.
Jjereme- "Flurble combantso man TONK forle bankse,"
Humerskle- "Tonk? molfanda crendanksa bunky bunka!"
Humerskle spits on Jjereme