A backpack/bag/duffel/etc. which contains emergency clothing and hygenics, in the event one cannot go home before going to work/school/see the GF/parents etc. after unexpectedly being up all night partying/doing drugs/banging the mistress/etc.
Matt: Yo man, you gotta work in an hour and we been here blowing llello all night. Won't yo ho know you been up all night when yo go home to change?
Valued customer: “hello young chap”
El trapo: “wys g you need that shit Yh mans got a loud crack pack just in has your name on it bro”
Valued customer: “cheers mate there’s £300 keep the change don’t tell czinoo I bought this off you”
El trapo: “sn g man wont that paigon”
The ultimateexpression of "What the fuck", this word is to be used only in the most extreme of situations. Brutal overuse of this term could lead to a tear in the fabric of the universe, causing reality to fall apart at an abstraction rate of 7.59 Cuils per second. Please be very careful with the word you have just read. The power of the cosmos rests in your hands.
John Watson: Holmes, I do believe this was not a murder, but in fact a suicide.
Sherlock Holmes: What the frick frack diddily dack patty wack snick snack crack pack slack mack quarterback crackerjack biofeedback backtrack thumbtack sidetrack tic-tac is this shit
Universe: *collapses*
Watson: dammit Holmes