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Related to spleen: liver, pancreas, Ruptured spleen
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vent (one's) spleen

To voice one's anger. Mom's been venting her spleen to me for an hour already. Apparently, Aunt Marie has wronged her yet again.
See also: spleen, vent
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

vent one's spleen

Fig. to get rid of one's feelings of anger caused by someone or something by attacking someone or something else. Jack vented his spleen at his wife whenever things went badly at work. Peter vented his spleen on his car by kicking it when it broke down.
See also: spleen, vent
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

vent one's spleen

Express one's anger, as in Some people see town council meetings as a place where they can vent their spleen. This expression uses vent in the sense of "air," and spleen in the sense of "anger," alluding to the fact that this organ was once thought to be the seat of ill humor and melancholy. [First half of 1600s]
See also: spleen, vent
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

vent your spleen

If you vent your spleen, you express your anger about something. He took up the attack, venting his spleen against the government for a full hour.
See also: spleen, vent
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

vent your spleen

give free expression to your anger or displeasure.
2003 Guardian Woodgate 's clumsy challenge on the striker was not contested, though the visitors wasted little time in venting spleen at both the culpable Danish midfielder and, erroneously, the young pretender.
See also: spleen, vent
Farlex Partner Idioms Dictionary © Farlex 2017

vent your ˈspleen

(literary) express your anger in speech or writing: He vented his spleen on the assembled crowd.In the past, people believed that the spleen (= a small organ near the stomach that controls the quality of the blood cells) was responsible for making someone feel sad or bad-tempered. From this, it came to mean a person’s anger.
See also: spleen, vent
Farlex Partner Idioms Dictionary © Farlex 2017

vent one’s spleen

tv. to release one’s anger. I just feel like I have to vent my spleen at somebody.
See also: spleen, vent
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
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References in periodicals archive ?
In the present study, 5 of the 21 (23.8%) patients with a PLT count <125x[10.sup.9]/L at POM 3 were aged age >50 years and had a longitudinal spleen diameter [less than or equal to]160 mm.
A spleen perfusion was set up on organs retrieved after slaughter.
In this study, variations were seen in the length of spleen. Length was seen to vary from 7.0 to 14.0 cm.
In univariate analysis, there was significant association of spleen size, baseline WBC count and percentages of blasts in bone marrow with BCR ABL1 (IS) at 3 months (p-value <0.001), while on multivariate regression model, significant association was found only in spleen size (p-value <0.001) with EMR.
At the termination of 7 h, 3 d, 6 d, and 9 d feeding trails (at this time, the piglets were 12, 15, 18, and 21 d old, respectively), all the piglets were anesthetized with an intravenous injection of pentobarbital sodium (15 mg/kg BW), and sacrificed by exsanguination for thymus and spleen samples.
After sequencing the genomes of a few dozen Bajau and Saluan, the researchers found that the Bajau had much higher frequency of a variant of specific gene, called the PDE10A, associated with spleen size.
In the spleen, as well as the blood and kidneys, the researchers found after drinking water with baking soda for two weeks, the population of immune cells called macrophages, shifted from primarily those that promote inflammation, called M1, to those that reduce it, called M2.
A POPULATION of Indonesian "fish people" have evolved extra large spleens that enable them to free dive to depths of more than 200 feet, research has shown.
Further CT scan revealed a well-marginated soft-tissues clinging to the gastric body, which had similar density with the normal spleen [Figure 1]g and [Figure 1]h.
LT[alpha] Enhanced the Recruitment of Both Neutrophils and Macrophages to the Spleen in Response to Pristane.
She underwent CT scan of abdomen, which revealed approximately 50 mm x 50 mm mass in spleen. She underwent EUS-FNA at our facility to sample the splenic mass.
The pathology showed primary angiosarcoma, which was 9x5 cm in diameter and confined to the spleen (Figure 3, 4).
In the present study we extend on these observations by exploiting [[sup.18]F]fluoro-PEG-folate PET to monitor potential systemic inflammation in liver and spleen of arthritic rats before and after MTX therapy, hypothesizing that MTX therapy also impacts systemic inflammatory effects in the organs.
In such cases, where the prognosis is excellent, it seems to be more beneficial for the patient to receive a minimal invasive spleen preserving operation so as to avoid lifetime immune deficiency and thrombocytosis.
A MAN whose spleen was removed after a vicious knife attack 16 years ago died after contracting an infection.