A straight line that is the limiting value of a curve. It can have many different equations and is the most important factor in curve sketches and other similar mathematical sectors.
The 4th order polynomial approaches the asymptote at y = x on the cartesian numberplane.
To dangle or swing by the by neck until the life passes out of your body and you crap yourself. What occurs when your tie gets caught in the ceiling fan.
"You shall hang by the neck till you are dead"
"But all I did was boink the sheriff's daughter"