A short stop intended to give passengers a break from a (long) bus or coach journey, especially in order to use the toilet; (hence euphemism) a short break taken from any journey or activity in order to use the toilet.
Origin
1930s; earliest use found in The Syracuse Herald.
Definition of comfort stop in US English:
comfort stop
noun
US
A short stop intended to give passengers a break from a (long) bus or coach journey, especially in order to use the toilet; (hence euphemism) a short break taken from any journey or activity in order to use the toilet.