Final answer:
The irony is that while the men find the women's quilting discussion laughable and trivial, these details are actually pivotal clues in the investigation that they are dismissively overlooking.
Step-by-step explanation:
The irony in the excerpt from Susan Glaspell's play A Jury of Her Peers lies in the dismissive attitude of the men towards the women's discussion of quilting, which is actually a crucial detail in understanding the larger situation of the protagonist, Mrs. Wright. The men laugh at the women's concern over whether Mrs. Wright was going to quilt or knot her quilt, seeing it as trivial and irrelevant to the murder investigation. This moment of dramatic irony highlights the gender divide and societal norms that undervalue women's perspectives. The women’s domestic knowledge becomes key in uncovering evidence of Mrs. Wright's motive, which the men, with their condescending attitudes, overlook.