pet phrases

my pet phrases of this sem are:
1. i'm tired.

2. i'm sleepy.

3. i'm going mad =(

btw, i assumed that "losing my marbles" is a common phrase,
but derfy didnt know what it means.
so.

to lose your marbles means to lose your wits,
meaning, you've gone mad.

i googled.
here:
It's more likely that 'marbles' was coined as a slang term meaning 'wits/common sense' for no particular reason. This uage begam in the us in the late 19th century and the Ohio newspaper The Portsmouth Times, reported a story in April 1898 that used marbles that way:

"Prof. J. M. Davis, of Rio Grande college, was selected to present J. W Jones as Gallia's candidate, but got his marbles mixed and did as much for the institution of which he is the noted head as he did for his candidate."

By 1927, an edition of American Speech defined the term unambiguously:

"Marbles, doesn't have all his (verb phrase), mentally deficient. 'There goes a man who doesn't have all his marbles.' "

yups.
anyone seen my marbles?