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1.
An unwanted erection, usually occurs for young school boys in maths lessons.
"Dude, I just got a fat tiffler in maths!"
by DannySEIZURE! October 02, 2008
9 4
 
2.
Basically, an unwanted erection.
"Dude, I just got a fat tiffler in math"
by DannySeizure! October 13, 2008
3 6