The pine cone is the nucleus of the tree, from which new trees start. Similarly, the COCK is the nucleus of the human male. (cf. every female stand-up comic)
nucleus or kernel
clitoris - not a word you'd use in most conversations, but I'm including it anyway because the literal translation is so irresistable: hidden nucleus! How boss is that?
You cough with your MOUTH.
The seed is the nucleus of a TREE,
but you carve with a SWORD.
My words correspond to what I SAY.
You whittle a what?? a CARROT,dummy.