A small Penis
In the dictionary it means a small specimen, small twig or leaf. So it fits perfect.
That asshole must be a sprig, because I don't see a buldge on him.
From the original meaning of "a small shoot", the "dirty but bouncy" sound of this word has caused it to be used in contemporary parlance as slang for "dirty and bouncy" acts. It can be used as a verb (eg, "Sprig me up, baby!") or as a noun (eg, "Fancy a sprig?").
So, Emma, sprigged Raj yet?