by WB's January 16, 2008

When a guy leaves behind a little secret territory marker at every place he has ever masturbated, be it anything from slightly saturated undergarments, to penile excrement on the toilet seat. Put all these tell-tale signs together, and you have a fappy trail.
Mom: Goly gee gosh, I realized why there's always a crumpled up tissue tucked under my son's pillow in the morning!!! It's his fappy trail!!!
by Loberson October 5, 2016

by BigBabyKrueg04 September 28, 2011

by zero charisma February 22, 2010

by Svetas Vope January 7, 2006

by WB's January 9, 2009

the sexual act of pulling out your penis before climax and blowing your load in a way that creates a trail of semen from the anus to the vagina. After creating the trail you then proceed to run that trail with the head of your penis until you or your partner is rubbed raw.
by Skeeterman169696969 February 10, 2015
