What you hear in this conversation: "Nice weather we're having today." "Ewe said it. Get it? I said 'ewe'!" "Ugh, that pun was awful." "You mean ... it was baaad?" (6)
I believe the answer is:
bleats
(Other definitions for bleats that I've seen before include "Makes sheep sounds in stable" , "Makes sound like sheep in stable" , "Sheep's cries" , "Tables of sheep sounds" , "Stable (anag) - pastoral sounds" .)