dash off vs toss off

dash off and toss off both are verbs.

Word	Noun	Adjective	Verb	Adverb
dash off	No	No	Yes	No
toss off	No	No	Yes	No

As verbs, dash off and toss off are synonyms defined as:

Other synonyms of dash off include fling off, knock off, scratch off.

dash off (verb)	toss off (verb)
write down hastily	drink down entirely
write quickly	write quickly