The term 'shook up' can be defined as to disturb or UPSET something. This can be seen in the crossword solutions of jarred (6 letters), STARTLED (8 letters), UPSET (5 letters), roiled (6 letters), MIXED (5 letters), FAZED (5 letters), jolted (6 letters), RATTLED (7 letters) and ruffled (7 letters). Each of these words can be used to describe a situation where something has been disturbed or UPSET, either physically or emotionally.