toss vs shake up

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

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

As verbs, shake up is a hypernym of toss; that is, shake up is a word with a broader meaning than toss:

Other hypernyms of toss include agitate, commove, disturb, raise up, stir up, vex.

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

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