noun:

• electric guitar - colloquialism ➜ エレクトリックギター

noun:

• oar
• all ➜ オールＡ

noun / ~する noun:

• (pulling an) all-nighter; staying up all night long - colloquialism - abbreviation ➜ オールナイト

noun:

• geek; nerd; enthusiast; otaku - colloquialism ➜ 御宅

noun / noun or verb acting prenominally:

• charisma (i.e. attractiveness, charm) - From German "Charisma"
• charisma (i.e. divinely conferred power or talent); charism
• charismatic person
• someone famous (usu. for their talent); celebrity; idol; icon - colloquialism

noun:

• Calpis (Japanese milk-based soft drink)
• sperm; semen; cum - colloquialism

noun:

• core

adjectival noun:

• core; hardcore; all-out; passionate - colloquialism

noun / ~する noun:

• reaching the winning post; reaching the finish; making the goal - From English "goal in"
• getting married - colloquialism

noun:

• 99.9999% - From English "six nine"
• sixty-nine; soixante-neuf; 69 - colloquialism - vulgar ➜ シックスティーナイン

noun:

• GI; G.I.; soldier in the US Army - from "galvanized iron" or "government issue" - colloquialism

noun:

• skin
• condom - colloquialism
• skin (e.g. alternative look and feel for interface of a program) - IT term

noun / ~する noun:

• ignoring; looking the other way; letting pass - colloquialism - From English "through"
• passing through; going through

noun:

• ball hit through net (in tennis) - Sports term

noun:

• (emotional) tension; anxiety
• (highness of) spirits; (good) mood; excitement; energy - colloquialism
• tension; tensile strength - Physics term

noun:

• pitch (i.e. pace, speed, angle, space, field, sound, etc.)
• pitch (from distilling petroleum, tar, etc.)
• pitch (football, rugby); playing field
• PHS portable phone - colloquialism - abbreviation ➜ ＰＨＳ

noun:

• pill
• birth-control pill; oral contraceptive; the pill - colloquialism

noun / ~する noun:

• blow-drying
• blow; punch - Sports term

noun:

• brow

noun / ~する noun:

• blow; playing an instrument (esp. in jazz) - colloquialism

noun:

• mass - usu. in art contexts

noun or verb acting prenominally:

• mass (media, production, etc.) ［マス］

noun:

• masturbation ［マス］ - colloquialism - abbreviation ➜ マスターベーション

noun:

• morning
• morning coat - abbreviation ➜ モーニングコート
• breakfast set (often a drink and toast); breakfast special; special breakfast offer - abbreviation - colloquialism ➜ モーニングセット

noun:

• mall
• maul (in rugby)
• mole
• Moor - From French "maure" ➜ ムーア人
• molding - abbreviation - colloquialism ➜ モールディング

noun:

• Yankee
• delinquent (youth); delinquency - colloquialism

noun / ~する noun:

• loss

suffix noun:

• feeling of loss - colloquialism

noun:

• Los Angeles - abbreviation ➜ ロサンゼルス

noun / ~する noun / ~の noun:

• honourable defeat; honorable defeat; honourable death; honorable death; death without surrender
• trying but being utterly beaten; being completely rejected when professing one's love ［玉砕］ - colloquialism

noun:

• binding hand and foot; temporary feeling of paralysis; sleep paralysis
• being tied down with money - colloquialism

noun:

• disposition; inclination; characteristic; idiosyncrasy; propensity
• sexual disposition; fetish - colloquialism

noun:

• nun ［尼］ - colloquialism
• bitch - derogatory term
• Amagasaki, Hyogo - abbr. 尼崎 - slang
• Amazon (online retailer) ［尼］ - slang

noun:

• unsold items; leftovers; remainders; remnants
• spinster; old maid - colloquialism - sensitive