wade in (also wade into something) phrasal verb informal (see also wade)

1. to enter a discussion, argument etc in a forceful and annoying way, often without thinking about the possible results:
I wish you wouldn’t always wade in with your opinion.

2. to move forward and attack someone:
The police waded into the crowd swinging sticks.

[TahlilGaran] Dictionary of Contemporary English ▲

wade in
v., informal
1. To go busily to work.
The house was a mess after the party, but Mother waded in and soon had it clean again.
2. To attack.
When Bill had heard Jim's argument, he waded in and took it apart.
Jack waded into the boys with his fists flying.

[TahlilGaran] English Idioms Dictionary ▲