For Marriage
Do not do it under any circumstances; if you do, you will pray to Allah for death every moment.
For Business / Deal
You will suffer a massive financial and reputational loss that cannot be compensated. Definitely abandon it.
سَنَسِمُهُ عَلَى الْخُرْطُومِ
Sanasimuhu AAala alkhurtoomi
Soon shall We brand (the beast) on the snout!