godan ~う verb:

• to do something completely - contraction of ..て or で plus しまう - colloquialism ➜ しまう・ちゃう

expression / godan ~く verb:

• to throw up; to vomit; to spew - colloquialism ➜ 吐く【はく】

godan ~く verb:

• to have a (rough) idea (of what the situation is) - colloquialism ➜ 見当がつく

noun:

• Smilax glabra (species of sarsaparilla)
• Smilax china (species of sarsaparilla) - colloquialism ➜ 猿捕茨

noun:

• spider mite (any mite of family Tetranychidae) - colloquialism ➜ 葉壁蝨

noun:

• smallpox; variola - colloquialism - abbreviation ➜ いもがさ
• pockmark; pock

godan ~す verb / transitive:

• to destroy; to crush; to break by striking; to wreck - colloquialism ➜ ぶち壊す【ぶちこわす】
• to spoil; to ruin - colloquialism ➜ ぶち壊す【ぶちこわす】

noun:

• we; us - male language ➜ 俺達
• I; me - male language - colloquialism

noun:

• telepathic communication - colloquialism - manga slang

expression:

• I told you so - colloquialism ➜ 言わないことではない

noun:

• Portuguese man-of-war (Physalia physalis) - colloquialism ➜ 鰹の烏帽子

expression:

• zip it (when used to others); I'll shut up (when used by oneself); button (one's) lips - colloquialism ➜ チャック

noun:

• Eurasian water milfoil (Myriophyllum spicatum) - colloquialism ➜ 穂咲の総藻
• aquatic plants such as hornwort that are commonly used in goldfish tanks, etc.

noun:

• musket (male Japanese sparrowhawk) - colloquialism ➜ 雀鷂

expression / noun:

• trouser zipper (mainly for males); fly - colloquialism - humorous term

expression / godan ~る verb:

• to flare up; to fly into a rage - colloquialism ➜ カッと

adjective:

• weak; feeble - derogatory term - colloquialism ➜ 弱い

adverb:

• early; quickly; soon - slang, ksb, arch. equiv. of 早く - colloquialism - abbreviation

noun:

• early morning; early hour; early in the day

noun:

• bruise - colloquialism

noun:

• handsome fungus beetle (any beetle of family Endomychidae)
• 28-spotted ladybird (Epilachna vigintioctopunctata) - colloquialism ➜ 二十八星瓢虫

noun:

• online handle (esp. on an online forum like 2ch where the majority of users post anonymously); screen name; user name - colloquialism
• user who uses a online handle (instead of posting anonymously) - colloquialism

noun:

• higan cherry (species of weeping cherry tree, Prunus subhirtella); early-flowering cherry (around the spring equinox) ➜ 江戸彼岸
• double weeping rosebud cherry (Prunus pendula) - colloquialism ➜ 江戸彼岸

noun:

• banned from access (e.g. from a web forum, etc.) - colloquialism - abbreviation - IT term ➜ アクセス禁止

expression:

• nothing more ... than this; as ... as it could possibly be - used after adj. - colloquialism ➜ ありはしない

noun / adjectival noun:

• rogue; devil; imp - colloquialism