To go for a "Slap" (Aussie colloquial) meaning to play slot machines at casinos and pubs.
"After this round, do you wanna go for a Will Smith (Aussie addition)?"
"Nah mate you go ahead, I'll do a Jada Pinkett Smith and sit back and watch you lose the plot"
A 5-some position
A man lies on the bed on his back, erect with 2 fingered raised in the air.
The 4 other women take the 4 choices of pleasure (2 hands, mouth, penis)
The man gets into a position representing an addition symbol (+)
Credit - Lew K the fake taxi filmer
Man last night I had ur mom, sister, aunty and grandma over, got into the addition position, best night ever