The post-anal-sex act of placing a straw in your partners anus and sucking out the mixture usually consisting of (but not limited to) semen, fecal matter, blood, sweat, etc. Generally used in the homosexual sub-culture but has recently popped up on the radar in the straight community.
After I got through pumping (and blowing my load in) gary's stink star, I put a straw in and enjoyed me some good ol' BUTTSHAKE!!
A large bowel movement relating to Shakespeare and his plays in that there are several Acts. Act 1. is the initial explosion, and after a short interval followed by the less powerful Act 2. and so forth. A Shakespearian Dump extending more than 3 Acts is quite an accomplishment.
Sorry Coach, I was late to tracktoday because I was taking a Shakespearian Dump.