So so, meaning indifferent or neither very good nor very bad appeared in the early 1500's, reason not known. There are links to early Greek words, such as 'mediocre' but nothing specific
There is no such phrase as "eat you".
There are many different phrases in the English language. To pinpoint the origin of this exact phrase is nearly impossible because of the broad definition of the phrase.
There is no such phrase. There is a word rampage. It is of Scottish origin, perhaps from RAMP, to rear up.
"on the rocks"
The Spanish for "I have put" is he puesto, could this be the origin?
sumething
god
The phrase "the last straw" originates from the idiom "the straw that broke the camel's back," which refers to a seemingly minor or routine occurrence that triggers a disproportionate reaction due to the accumulation of previous stress. Just as a camel can carry a heavy load until one final straw causes it to collapse, this phrase describes a situation where a small event leads to a significant outcome.
Canada
IRISH
The phrase 'come full circle' refers to getting back to the original position or the original state of affairs. The origin of the phrase is unknown, but is used in the Western world.
The phrase became popular at the beginning of the 1800's meaning very distressing or exhausting. There does not seem to be an explanation, so origin not known. As a guess, as England was at war with France from 1799 to 1815 it may be connected to the stress of the conflict.