Trailing twelve months is a unit of measurement used to indicate an organization's financial standing in the market. I think this is what is being referred to in the quote.
From Wikipedia:
Trailing Twelve Months (TTM) is a measurement of a company's financial
health used in finance. It is measured by using the income statements
from a company's reports (such as interim, quarterly or annual
reports), to calculate the income for the twelve-month period
immediately prior to the date of the report. This figure is calculated
by analysts because quarterly and interim reports often show only
income from the preceding 3, 6 or 9 months, not a full year. Because
it does not represent a full year, this data can be skewed by seasonal
trading patterns, say higher sales over Christmas, giving a less
accurate picture of a company's fiscal health.1
Typically trailing twelve months figures are generated to show either
the most recent twelve months of a company's trading or to show the
last twelve months of its trading before a certain event, such as an
acquisition, took place. If no quarterly or interim report has been
issued between the last preliminary report or annual report and the
date in question, then there is no need to generate trailing twelve
months figures, because annual and preliminary reports already contain
figures for 12 months.
An interesting example included in the article:
If a Company reports $1 million in quarterly revenue in a 10-Q
1/1/2000, a $10 million yearly revenue on 10/1/2000, and $4 million
quarterly revenue in 1/1/2001, the trailing twelve months revenue is
calculated as $13 million as follows.
Most Recent Quarter(s) + Most Recent Year - The Corresponding
Quarter(s) 12 Months Before the Most Recent Quarter(s)
$4m + $10m - $1m = $13m
It means to move to or toward the toilet.
head
verb (used without object)
56.
to move forward toward a point specified; direct one's course; go in a certain direction:
to head toward town.
noun
24.
a toilet or lavatory, especially on a boat or ship.
Best Answer
The phrase isn't time to head. It's time to, which a colloquial shortening of it is time to. In the comic, the character is thinking:
The term head back means the same thing as go back. Her thought is interrupted in the middle of the word back when she sees the game center, so the author writes "ba-" to indicate the interruption.