It is actually "double entendre".
It is French for "double hearing"
It is a word or group of words said that can have two or more different meanings.
Often there is a "normal" meaning and the second one has some kind of sexual connotation.
Some examples are:
Pool players have balls.
Dentists always look down in the mouth.
You get 24 if you double 12.
B sharp, C double-sharp, D double-sharp, E sharp, F double-sharp, G double-sharp, A double-sharp, B sharp.
thd double of three is six.
146
Multiply x2, then do it again.
In Classical Ballet there are seven categories of movement: Plier "Bend", Etendre "Stretch", Relever "Rise up", Sauter "Jump or Leap", Glisse "Glide", Tourner "turn" You may find more detailed ballet movements here: https://en.wikipedia.org/wiki/Glossary_of_ballet
Double Trouble, Double Jeopardy, Double Dutch, Double Dare
Word that has double c double s and double l: successfully.
Successfully contains double L double C and double S. Unsuccessfully also contains double L double C and double S.
An In-N-Out Double Double has 670 calories.
double helix
A double double is a term commonly used in Canada when buying coffee a Tim Hortons. A double double is two teaspoons of sugar and two cream.
Double reed.
kelvin double
double u double u double u
double
Double the amounts in the recipe. Make a double batch.