Guy 1: Remember that time I yelled "Kobe" and scored from the corner on a buzzer beating 3 pointer?
Guy2: Oh word? Not like I heard this story 70 times.
"Word" as used in WTYM and similar expressions relates back to a declaration of Truth or Truthfulness. It may be derived / appropriated from standard English as a shortening of "I give my word (of honor)". Word To Your Mother is an emphasizing phrase, meaning that my words are true and I would swear it to your/my mother, or a reply emphasizing that your words are true and I agree with you. Overall a derivation or corruption of Word To The Mother, popularized in Vanilla Ice's rap to "Ice, Ice Baby".
To be cockblocked or cuckolded in a tremendous (and/or tragically hilarious) fashion. Originates from a Fark.com thread, in which a man describes his friend (whose last name is Woodside) moving in on a girl that he liked, not once, but twice in the space of 10 years (the second time resulting in an engagement).
Jack was getting married (they were both saving themselves for the wedding night), and he invited his collegebuddy Scott to the wedding. Scott met Jack's bride-to-be for the first time at the rehearsal dinner, and just two hours later, he Woodsided Jack with the fiance in the coat closet of the reception hall.
A polite way of referring to unsavoury use of the English language. derived from the impressions of stereotyped pirate figures, whom are viewed as being of lower social scale and hence more likely to us unsavoury English.
Similar usage to the phrase: "Pardon my French"
Person One: "Fuck you Fucker-head"
Person Two (Response): "Please, there is no need to use PirateWords"