A sheep that has been properly bred.
(Since all sheep pretty much look alike, when a ram is introduced into the flock, his underbelly is dusted with red powder. Upon visual inspection, this makes it easy to identify the ewes that have been mounted. Red powder, white fleece, presto, pink! This is according to a livestock vet whose family I am acquainted with.) And, a new perspective can really be funny.
When a statement or a joke amuses you to a point, to an extent which would fill you with warmth and make you grin broadly, but not necessarily laugh. It gets you in a personal place. Perhaps it appeals to nostalgia, or it's simply a joke that only you find funny, or particularly resonates with you for no apparent reason.
Bob laughs at something for ten minutes.
Bill: How can you find it that funny?
Bob: No idea, it just really tickled my pickle.
One day a young lad name Jeffery Larrimore said a hilariously funny joke. Then he asked Justino Kinsland, Hey did that make u laugh? Justino says: Yes, It really Tickled My Giggle Glands!