Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun idiomatic A survey of opinion which is unofficial, casual, or ad hoc.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun an unofficial vote taken to determine opinion on some issue
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
It may allude to a straw (thin plant stalk) held up to see in what direction the wind blows, in this case, the wind of group opinion.
Support

Help support Wordnik (and make this page ad-free) by adopting the word straw poll.
Examples
Sorry, no example sentences found.
fbharjo commented on the word straw poll
straw polls are bent out-of-shape?
November 5, 2010