shake up vs toss

shake up is not a noun while toss is a noun.

Word	Noun	Adjective	Verb	Adverb
shake up	No	No	Yes	No
toss	Yes	No	Yes	No

As verbs, toss is a hyponym of shake up; that is, toss is a word with a more specific, narrower meaning than shake up:

Other hyponyms of shake up include beat, scramble, rile, roil, poke.

shake up (noun)	toss (noun)
	(sports) the act of throwing the ball to another member of your team
	the act of flipping a coin
	an abrupt movement

shake up (verb)	toss (verb)
make fuller by shaking	agitate
change the arrangement or position of	throw or toss with a light motion
stir the feelings, emotions, or peace of	throw carelessly
shock physically	lightly throw to see which side comes up
shake; especially (a patient to detect fluids or air in the body)	move or stir about violently
organize anew	throw or cast away