1. To snow on someone or something. Ugh, another storm system is expected to dump on us this weekend.

2. To inform someone of one's problems or woes. In this usage, a noun or pronoun can be used between "dump" and "on." I'm sorry I just dumped it on you like that, but I had to tell someone about my mom's illness.

3. To unexpectedly and unreasonably delegate something to someone. In this usage, a noun or pronoun can be used between "dump" and "on." Can you believe the boss dumped all this work on me the day before my vacation?

4. To dispose of something somewhere. In this usage, a noun or pronoun can be used between "dump" and "on." You can't just dump all your old furniture on the sidewalk and expect the trash men to take it.

5. To criticize one harshly and undeservedly, often due to frustration. I know you're stressed about the wedding, but can you please stop dumping on me? I didn't intentionally bring the wrong box of place cards!