What is the meaning of Slog?

A long, tedious walk or march.

A hard, persistent effort, session of work, or period.

A book or other media that is difficult to get through due to dullness, density, or lack of narrative momentum.

An aggressive shot played with little skill.

To walk slowly or doggedly, encountering resistance.

To work slowly and deliberately at a tedious task.

To strike something with a heavy blow, especially a ball with a bat.

past tense of slå

to swallow

first/third-person singular preterite indicative of slēan

syllable

stack, pile

past indicative of slå

Source: wiktionary.org