When the penis is removed from the oral cavity during fellatio and the recipient graciously ejaculates into one's own palm. The person providing fellatio is then slapped with the semen ladened palm, spreading the viscous emissions across the face. Generally considered a demeaning act.
He was delighted that his partner pulled out of his mouth prior to ejaculating until suddenly he found himself the recipient of a Seattle Slapjack.
a combination of "slav" and "hijacked"
When a Slavic person eavesdrops on your conversation in your native tongue in a foreign country and then chimes in, disclosing their fellow Slavicness.
After singing a few lines of a song, someone within earshot takes over and sings the entire song louder, with greater enthusiasm, and sometimes with less talent.