Simple past tense and past participle of slog.(verb)
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Use "slogged" in a sentence
"Having slogged their arses off all day out on the streets, the team was floating on a cloud of satisfaction that, at close of play, their good work was about to yield a result."
"Negotiations between the White House and congressional leaders slogged forward Friday, with both sides reporting slow progress toward a deal to keep the government funded beyond midnight."
"Not sure who has actually slogged through this first Brookside Buzz blah-blah-blah, but if you have, thanks!"