[Under ordinary circumstances, "up your nose with a rubber hose, old man" probably would've gotten a snicker out of him, even though he (once again) doesn't understand the reference. Hell, were he not so caught off-guard by how weird this conversation is getting, that "hey, I'm old" comment would've no doubt prompted Yusuke to immediately fire back with a friendly reminder of where bears go to take a number two, because hello, it's not like it'd take a freakin' microscope to see all those wrinkles on Blake's face. As it is, though, Yusuke's so genuinely taken aback by all of this that he's not able to manage either of the two. It's at this point that he finally begins to catch on to the fact that Blake's scraggly appearance and his, uh, erratic behavior might not actually be caused by extreme sleep deprivation like he'd originally suspected, but before he says so aloud, there's just one thing he needs Blake to confirm for him:]
video;
"Out to pasture", like... a horse?