Wiktionary
adv. 1 please, kindly; (non-gloss definition: used in giving a non-concrete instruction.) 2 so to speak, like; (non-gloss definition: used to indicate that a description is not standard.) 3 (non-gloss definition: Used in conceding a description.)
Usage examples of "if you will".
I am not at all of a jealous nature, and if you will not mind my small peccadilloes then I will look the other way while you amuse yourself.
And, if you will, O moon of infinite longing, perhaps my own will depart.
O great one, then accept from me, if you will, the gift of the Arabian stallion to carry you like the winged horse of fame to where safety lies for you.
His body will die but his essence if you will, everything that he is, will be inside me.
Gervais, old man, if you will lay out the dominoes facedown, we shall let Aunt Freddie take the first draw.
You can follow, if you will, the further adventures of that man-at-arms, up to that last chapter when he marries the still beautiful queen, and henceforward acts in her name, taking upon himself a power similar to her own.