noun:

• image response - abbreviation - slang - IT term

adjective:

• dangerous - poss. from やばい - slang
• unsatisfactory; boring - poss. from しょぼい - slang

noun:

• monkey (esp. a gibbon)
• hand of the puppeteer (puppet theatre) ➜ 人形浄瑠璃
• menstrual period - slang
• kappa ➜ 河童

godan ~る verb:

• to masturbate - slang ➜ オナニー

expression:

• I LOL'd - past tense of ワロス - slang ➜ ワロス

noun:

• albatross - slang ➜ 信天翁【あほうどり】

noun:

• police officer; cop - slang

expression / adverb / prefix:

• a lot; to a very great extent; absolutely - slang - abbreviation ➜ 半端ない

adjectival noun:

• natural; reasonable; obvious - from 当り前、べらぼうめ - slang ➜ 当り前・べらぼうめ

noun:

• real culprit (police slang) - slang

noun:

• being pregnant - slang - obsolete term

noun / ~する noun:

• reselling train tickets on the black market - slang - obscure term

noun:

• same age - slang

ichidan verb / intransitive verb:

• to run away (e.g. from work) - slang

noun:

• young woman who acts like an old man - slang

godan ~る verb:

• to catch a taxi; to take a taxi - slang ➜ タクシー

noun:

• person who is satisfied with his or her real (offline) life - from リアル+充実 - slang ➜ リアル・充実

noun:

• men who have slept with the same woman; hole brothers [literal] - vulgar - slang ➜ 竿姉妹

noun / ~する noun:

• premises search; household search - がさ derives from a reversal of さがす - slang ➜ 捜す

interjection:

• let's go - 1970s slang, pun on the manga レッツラゴン - slang ➜ レッツゴー

noun:

• someone who became a teacher for lack of anything better to do - slang - derogatory term

~と adverb / adverb:

• rustling sound - onomatopoeia

noun:

• search (esp. a home search by the police) - obscure term - slang ➜ がさる

godan ~る verb / transitive:

• to search (esp. a home in a police search) - obscure term - slang

noun:

• muscle-brain; meathead; hot-blooded idiot; person who charges in before thinking - slang

godan ~る verb / intransitive verb:

• to panic (from the flu panics of late 2000's and early 2010's); to act frantically; to act bizarrely - slang ➜ タミフル