1
general::
Extend or enlarge beyond the usual limits, exaggerate, as in It would be stretching a point to say this novel is the work of a great writer. [Mid-1600s]
American Heritage Idioms
2
general::
Phrase(s): stretch a point [and] stretch the point
Fig. to interpret a point flexibly and with great latitude. • Would it be stretching a point to suggest that everyone is invited to your picnic? • To say that everyone is invited is stretching the point.
McGrawhill's American Idioms And Phrasal Verbs