Pettan alone means flat. For example, the suffix -ko means "girl" (such as in meganeko, megane = glasses so glasses girl) so pettanko means a flat (chested) girl.
As for the Japanese look, there's three main points of the way modified cars should look (in Japan), and that's onikyan (cambered wheels), tsuraichi (tires just barely inside the guards) and hippari (stretched tires).
(weeaboo1): THAT GIRL IS SO KAWAAAAAAAAAAAAAIIIIIIIIII!!! (^-^)
(weeaboo2): HAI, BUT SHES A TSURUPETTAN
(^-^)
a few seconds of silence...
(weeaboo1 and 2): KAWAAAAAAAAAIIIIIIII!!!!!
Similar to “sure” but the “t” emphasizes how pissed of you are at the statement or request made. Also emphasizes how much you don’t give a shit about what the person said.
Precedes or follows either a gratuitously disrespectful or honest remark, originated in New York City. Used in similar fashion to "no offense" or "to be honest," interchangeably.
Ya mans is wild buns, respectfully. Respectfully he's washed.
After school, The Modells on Jamaica Ave was active. Respectfully.
Adjective. Used to describe persons who have adjusted or altered their lifestyle for environmental reasons. Crunchy persons tend to be politically strongly left-leaning and may be additionally but not exclusively categorized as vegetarians, vegans, eco-tarians, conservationists, environmentalists, neo-hippies, tree huggers, nature enthusiasts, etc.
Also used to describe establishments where alternative foods and products are sold, i.e. natural food stores.
In a tabletop game, a murderhobo is a player who murders NPCs indiscriminately. This is normally derogatory, referring to a player who totally ignores quests, dialog, backstory, trade, world building etc.
The term is most common with Dungeons and Dragons, but it can be applied to most RPGs where the player is allowed to kill most quest-giving NPCs and NPC traders. E.g. Elder Scrolls, Fallout, Divinity original sin.
DM: The sad little orphan girl tugs at Steve's trenchcoat to get his attention, and ask for help saving her pet dog from...
Steve: I'd like to roll a strength check against strangling the orphan.
Dave: I call dibs on the dog.
DM: You murderhobos disgust me.