backside attack

proper: a chemistry term used to describe the transfer of electrons and subsequent bonding of a neucleophile to the back face of a molecule. the back side described is the chiral center, with subsistents in a tetrahedral formation facing away from the nucleophile. once the backside attack is complete, the stereochemistry of the molecule is inverted.

chem eng slang: a difficult academic situation. it is often used to describe the difficulty of an -ssignment or a test. synonymous with -ss rape.
“oh sh-t, that exam was a total backside attack!”
1) the sn2 mechanism in which the nucleophile attacks the alpha carbon from a direction directly opposite to the c-lg bond. results in inversion of stereochemical configuration.

2) when attacking a loved one from the back side
1) wow that strong nucleophile caused one h-ll of a backside attack.

2) john: dude i went for the back side attack last night
joe: howd it go
john: lets not go there…..
term used for the attachment of the nucleophile in an sn2 reaction to kick off the leaving group. in slang, it means to fail a test or have a lot of difficulty on a test, especially an organic chemistry test.
that orgo test just back-side attacked me, sn2 style.
real-a term used in chemistry to describe a chemical reaction mechanism.

slang-when a girl who doesn’t know you are there bends over and you (attack/ hump the f-ck out of) her backside.
girly was bending over so i busted her up with a backside attack
f-cking someone in their -sshole.
“yo, last night was mad crazy when you gave me the backside attack.”