The document defines a number of words: pallid means very pale and unhealthy looking; gruff means unfriendly and rough; forfeited means lost the right to; gawk means stare or gape stupidly; cash in means to get money or advantage from an event or situation often unfairly; dog tired means exhausted; diligently means steadily and carefully; perambulating means strolling or walking around; immaculate means free from blemish; berserk means crazed; brawny means strong and muscular; tremor means a small quake or vibration; placidly means calmly and quietly; luminous means reflecting light or shining; fumble means handle clumsily; sidle up to means