grow a tail

idiomatic vulgar

(vulgar, idiomatic) to be nearly about to defecate, to the point of being unable to completely hold it in

Japanese Meaning

もうじき大便を出してしまいそうな、便意を抑えきれない状態になる（俗語的表現） / 排泄が差し迫った状態、排便しそうな寸前の状態を表す表現

If I don't get to a restroom soon, I'm going to grow a tail.

このままトイレに行けなければ、もうすぐお尻を漏らしてしまいそうだ。

Sense（1）

(vulgar, idiomatic) to be nearly about to defecate, to the point of being unable to completely hold it in

When man needs to grow a tail, man must run to bathroom without fail.

Thou shalt groweth thy tail with great care, or though might staineth thine underwear!

grows a tail

（ present singular third-person ）

growing a tail

（ participle present ）

grew a tail

（ past ）

grown a tail

（ participle past ）