blow one's wad

Verb

idiomatic vulgar

(idiomatic) To spend all of one's money. / (idiomatic) To expend all of one's resources or efforts; to express all the arguments or ideas which one has. / (idiomatic, vulgar) To ejaculate, to cum.

Japanese Meaning

（口語的）全財産を使い切る、全ての資金を使い果たす / （口語的）全力や資源を使い切る、努力や手段を全て尽くす / （口語、下品）射精する、精液を放出する

What is this buttons?

After payday, one can easily blow one's wad on impulse purchases.

Google Translation / DeepL Translation

給料日になると、つい衝動買いでお金を使い果たしてしまうことがある。

Details

Sense（1）

(idiomatic) To spend all of one's money.

When a man "blows his wad," at least two different things could have occurred: he either spent or lost all his money in a wager (his wad), or he spent or ejaculated his sperm (his wad). Thorne goes on to suggest that since at least the 1950s "blow," in this context, is a euphemism for "ejaculate."

Google Translation / DeepL Translation