When the fluid levels inside your penis change all of a sudden. The act of cumming quickly and excessively.
My girlfiend jerked me off so bad that I digressed all over her face.
by ozzy4_ever October 11, 2011
To go off-topic.
"Elephants are the only animals that can't jump... but I digress. Back to Physics..."
by Bertha September 21, 2003