Liquid nicknames

Lots of people have normal nicknames - Johnno, Dicko, Jacko - but for some strange reason a clan of very silly young men from school seem to evolved beyond mere normal nicknames, to extreme nicknames:

• Screeder Feeder
• Hump Scrag
• Snaffle Apple
• Munga Barry
• Smut Matter
• Dazz Manazz

Perhaps there was something in the water...