seinen Senf dazu geben
literally: to add one's mustard
to offer one's (not necessarily welcome) commentary (usually unasked); to put one's oar in
Origin: According to various historians, this idiom likely originated in the 17th century. At that time, mustard was regarded as a condiment that was thought to make any meal more enjoyable—even when it did not pair well with the dish. Consequently, innkeepers of that era would simply serve mustard to their guests with every meal, whether it was requested or not. Since this practice was considered just as unwelcome as unsolicited advice, the idiom "to add one's mustard" eventually took root.













