When the spy, featured on the PS3, and PC game, Team Fortress 2, attempts to stab you (one of the 8 other male characters) in the back, but instead, gives you "Surprise Buttsecks" after, the trending songs and videos on YouTube.
*The Blue Scout, is defeating the red team when suddenly-*
Spy: "SURPRISE BUTTSECKS", BUTTSECKS, B-B-B-B-B-BUTT-SECKS!!
A: Me and my gf had a really romantic datelast night. Saw titanic.
B: nice
A: yeah, and then when that stupid boat sank, i gave her surprise buttsecks!!!1 kekekekeekk
B: WTF??
Noun - a person who exposes their buttcrack in public, likes to steal stuff off porches to support their crack and meth habits, a does it in a cool climate during the cold months.
Verb - The talented act of inserting crystal meth into your buttcrack to make it cold.
Lauren really buttcucked me this weekend. She was telling me about how her ex used to toss her salad, but she won't even let me stick a thumb in it. Wtf bro?