look up any word, like half chub:
 
1.
Slang for the act of having sex
Where's Bob?
He's over at Sally's treading.
by T. Beavan July 29, 2004
 
2.
someone walking heavily
"what the hells that noise?"
"it's chuffin' craig the fat treader he treads everywhere because of his weight he's a right treading freak as$ joint"
by aboo November 19, 2005