the.com/mush

means Excessively sentimental talk or feeling — the gooey, soft-hearted stuff that makes you say 'aww' or roll your eyes, depending on your tolerance.

from Originally just the food sense — a soft, pulpy mass, especially boiled cornmeal, recorded from the 1700s and likely a variant of 'mash.' The emotional meaning ('don't give me that mush') grew straight out of the food: sentiment so soft and shapeless it might as well be porridge. As a dogsled command, 'mush!' is unrelated — probably a garbled borrowing from French 'marchons' ('let's walk'), carried north by French-Canadian trappers and mushers.