Soulfisting

Soulfisting refers to an act in episode 6.07 Family Matters where Castiel put his fist into Sam's chest to search for his soul. It has since become a meme on meme.

Threads

 * Sam dreams of soulfisting: Top/bottom, June 14, 2012, Post #82
 * Soulfisting and soulcum: Set photos 10/5/12, October 6, Post #89
 * Sassy and Cas/Benny soulfisting: 8.5 spoilers, October 9, 2012, Post #89
 * Dean gets in on soulfisting Sam, plus Cas giving advice: Wincest mentioned in this article, October 21, Post #90
 * Sassy soulfisting: 8.7 description, October 24, 2012, Post #91

Related

 * Sassy