Here are some words made up by my classmates in Year 5.
noiter: a loud or horrible noise
frongiggle: an eyebrow
slodgingoyle: what snails call 'milk'
grondole: the opposite of a noiter
anuvway: another way
onay: on my way
easteast: a sandwich that lives in the east and talks
shinshanshoo: a mix between Shannon and shampoo
traved: a travelling bird