Verb; the act of placing the male genetalia upon the anal rim of another individual ; male OR female and proceeding to penetrate and/ or stimulate the asshole for any given duration of time deemed appropriate for the agitator.
“Tanya always comes home with a bucket of chicken after her shift ends at KFC. Probably because of the buttdicking she endured prior to her closing the restaurant with her manager, Phil.”
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 BlueScout, is defeating the red team when suddenly-*
Spy: "SURPRISE BUTTSECKS", BUTTSECKS, B-B-B-B-B-BUTT-SECKS!!
To give someone anal sex at an unexpected time, or place. Perfect for those special moments.
A: Me and my gf had a really romantic date last night. Saw titanic.
B: nice
A: yeah, and then when that stupidboat sank, i gave her surprise buttsecks!!!1 kekekekeekk
B: WTF??