When you spend hours, days, or weeks tweaking on a project and it actually gets finished and is functional.
Man, Billy your christmas strobe light bicycle safety flashlight beacon is "tweaktastic"!!!
Hey I finally finished my solar wind powered vhs tape rewinder and it's "tweaktastic"!!!
The act of twerking and gyrating yourself on someone while looking back and sticking your tongue out.
That guy was totally a victim of that trailer trash tammy giving him the "miley cyrus"!!! Yeah, poor bastard, she stained his wranglers.