What is the meaning of thickly?

adverb

• Spoken with poor articulation as if with a thick tongue.
  • usage: "after a few drinks he was beginning to speak thickly"
• In a concentrated manner.
  • usage: "old houses are often so densely packed that perhaps three or four have to be demolished for every new one built"; "a thickly populated area"
  • synonyms: densely
• With a thick consistency.
  • usage: "the blood was flowing thick"
  • synonyms: thick
• With thickness; in a thick manner.
  • usage: "spread 1/4 lb softened margarine or cooking fat fairly thickly all over the surface"; "we were visiting a small, thickly walled and lovely town with straggling outskirt"
• In quick succession.
  • usage: "misfortunes come fast and thick"
  • synonyms: thick